Omni Legion

"It doesn't matter where we come from, all that matters is we’re here and we serve our Emperor."

- Attributed to an unknown Omni Legion Battle-Brother

This Chapter's origins can be traced to the 7th Founding which occurred sometime in M34. Working primarily in the Segmentum Ultima the Omni Legion ally themselves closely with the Adeptus Mechanicus, several other Adeptus Astartes Chapters, and the Adepta Sororitas Order of the Sacred Flame.

Despite their undying loyalty to the Imperium and its people the Chapter's history has made the Inquisition suspicious of their very existence. Kept at bay thanks to the influence of the High Lords of Terra and being watched closely by their Adepta Sororitas and Mechanicus allies. The Inquisition still requests frequent examinations of the Chapter which is handled by the Magos Biologis themselves, with reports from them and the Chapter's Apothecarion. Many describe them as an armed cleanup crew for the Adeptus Mechanicus. Though they search countless systems for traces of technology lost over the millennia their primary purpose is safeguarding the Imperium and it's citizens.

Founding
Early in M34 a small Explorator Fleet from the Forge World of Roitheta was dispatched during one of the Forge World’s expeditions to find a potential STC. This specific mission took them to a world in the northern sectors of the Segmentum Ultima one which had oceans of pure ice and black mountains. This Dead World was designated Vintis. The fleet’s attention was drawn to it because of a faint signal, coming from one of the northern ends of the planet. It was difficult to determine what the signal was meant for as it didn’t appear to be a distress signal.

The Explorator “Myrddin” landed on the planet’s surface and upon exiting his ship with a small force of Skitarii they were quickly overwhelmed by subzero temperatures that frosted their metal limbs. It didn’t take long to find a large metal door intended to welcome those as large as 10 feet. It took mere hours for Myrddin to console with the door’s machine spirit, through this exchange he knew something was very wrong with this world.

Many of the details of what happened inside is undocumented in official files, if there’s any it’s possible they’re available to the Adeptus Mechanicus and High Lords of Terra. What is known is that inside this fortress were Astartes. In close to 200 pods they slept. Already clad in power armour, some in Mark III and other in Mark IV. Other pieces of technology from the great heresy itself, many suits of Tartaros Terminator armour and unused Contemptor-Cortus Dreadnoughts. Even a perfectly intact Gene Seed was found in mass. One more item found inside was the one thing Explorators such as Myrddin can only pray to see once in their lifetime, an STC.

Upon returning to Roitheta a small number of the Astartes were released from their pods with the Skitarii surrounding them as they stood before “Evienne”, the Fabricator-General who looked down at the confused Marines. Days of questioning proceeded as the High Lords of Terra were informed of this discovery. Through the questioning it was determined these Astartes had no memories of their conception or even their identities. This would carry on for years.

During this time a larger Explorator fleet was sent back to Vintis but more properly prepared to haul everything they could with the intention of finding similar heresy era technology or perhaps something older than that. Last contact would be many months after reaching their destination. A Space Marine Chapter located in the sector was sent to investigate, the reports that returned were disturbing. The Explorator fleet’s remains were hardly husks as the ships were torn apart and gutted. Blown to pieces and everything that wasn’t the framework was gone. That wasn’t the strangest part. Vintis was also gone. Vanished. An entire world as though it never existed.

By the time the 7th Founding neared it would be determined that the Forge World of Roithea would serve as the Chapter’s supplier for weapons and vehicles. Production for the world boomed and they received additional resources from nearby systems to aid in production ranging from a bolt pistol to mighty Battle Barges. The High Lords of Terra made the decision to have this new Chapter dubbed “The Omni Legion” operate in the Segmentum Ultima. Their primary duty was to pursue technology in the same way as the Explorators as a result of the major loss of their fleet. All the while remaining on standby and prepared to go to battle at a moment's notice. Shortly after their founding another Formation (Company) was created with the intention of seeking a world to call home for the Chapter and construct their Fortress Monastery.

Taking a small fleet of a single Battle Barge and six Dauntless-class Light Cruisers this new Formation which would eventually become the Chapter's 5th Formation that would lead the training of all future Initiates.

Tallon V
Hosted the Chapter and their Fortress-Monastery from the year 513.M34 to 398.M36 In the year 487.M34 the Death World of Tallon V was contacted by the Omni Legion led by their first Chapter Master "Griffith" as one of the first worlds visited by the newly established Chapter. The planet is roughly 5540 km in its radii, putting it roughly 15% smaller than Holy Terra. The purpose of this was to find a world that would best suit training the Chapter’s Initiates and Tallon V was found. The temperature of the world could reach heights that would kill any normal human. The only protection from the rays outside of man made structures are caves or the thick clouds of sand that can block out the sun for days. The planet itself has a slower rotation, mixed with its orbit around the sun the majority of the planet to always face the Sun. There were thousands of human settlements that existed along the borders of the sunrise and sunset, named “The Divide”.

The darker side of the world has it’s shared dangers as the wildlife outside the city has forced the construction of large walls with powerful lights to keep away many of the light sensitive creatures. Ranging from massive mammal creatures with a bone-like armour on their flesh that crave humans to small insects that will burrow into human flesh to seek warmth. The streets watched closely by the Adeptus Arbites and Adepta Sororitas with a strict curfew to those who do not carry merchant licenses or are higher ranked members of the Adeptus Terra or Adeptus Ministorum.

Inconclusive reports that sometimes conflict with one another have given different reasons for why the Chapter's original Fortress Monastery was ultimately abandoned which led to the Chapter becoming fleet based. One of the most popular theories that due to its position on the dark side of the planet it was overwhelmed by the planet's wildlife and was deemed too dangerous. The Fortress Monastery would have been swarmed by thousands of these black creatures who craved flesh and warmth, killing anything that tried to stop them. During this event the very mountain the Fortress Monastery was built into begun to shift and shudder as from the very floors and walls these Beasts tore though and begun to slaughter hundreds within their own walls.

Upper Cities
The majority of the cities sprawl with well maintained cathedrals as the largest structures. While citizens live in surrounding areas. Large structures with most homes made to hold families of four, though many can hold more than designed. The thick walls were constructed to resist high temperatures in the event that the world’s rotation changed and the cities ever faced the sun during one of these seasons.

The capital is where the Administratum and the Adepta Sororitas are positioned, working to monitor and control the entire city from there. The Adeptus Arbites patrol the city streets and are a more common sight than the Sororitas. Rarely does force need to be used against citizens of the Imperium as the upper city crimes rates are very low or they’re just kept under wraps very well.

The higher class citizens who have a history of their children becoming Astartes got to where they are because of this. Many families will happily give up their child if it meant their status would grow. Mansions constructed far above the normal quarters working classes live in, looking far around the city as there's no safer place since many members of the Order of the Sacred Flame live in similar structures after completing their training and are to live in the heart of the city.

The Slums
As expected, crime is rampant in the slums of the city despite the watchful eyes of the Administratum. It’s unavoidable. Many die of disease and famine if it isn’t a bolter through the skull over a drop of water. Gangs and criminal empires rule the people and control these parts of the cities and their territory. There are few who have dared to try to spread to the upper parts of the cities where they were met with the wrath of the Adepta Sororitas protecting the citizens and showing the mutants and heretics that they indeed hold no power to the Imperium.

The black market on Tallon V includes salvage that falls from the cities above. Another valuable resource is water that in truth is distilled from the waste that makes its way down to create rivers of filth or blood of humans killed for their property and possessions. Melta weapons are most easily attainable through these markets, few traders will attempt to deal with plasma weapons because of their tendency to blow up and setting fire to the area.

Sweeps of the slums are performed by the Adeptus Arbites with many weapons retrieved and the purging of mutants is normal, the frequency of these are seemingly random as to ensure the people of the Slums cannot prepare. Infants are taken by the Arbites from the families they kill or that are found already dead so they may taken as potential recruits for the Schola Progenium because of their young age therefore their ease of being indoctrinated to follow the Ecclesiarchy.

Settlers of Tallon V
The settlements that wish to be independent from the Imperial cities and have been left out of receiving military, medical, or religious aid from the cities. Many of these settlements don’t last even a century and new ones appear just as often as they vanish. Led by their own governments that wish for the world before the arrival of the Imperium and their control. They are hostile toward nearly anyone from the cities or from the Imperium, especially the Administratum or Astartes. Despite the watchful gaze of the Imperium it’s rumoured that in the modern age the Tau Empire is attempting to ally with these humans and have them join the Empire.

The Ark
"The Ark", is a massive ship capable of housing the entire Chapter, their allies and their fleet of additional ships should the moment arise. The Adeptus Mechanicus of Roitheta hold a large presence on the ship as part of the agreement between The Omni Legion and Roitheta, all technology recovered by the Chapter is to be overlooked by Explorator Myrddin before it’s taken to Roitheta to ensure it’s condition and any additional research performed before it’s turned over.

Typically The Ark will hold its position between Roitheta and Tallon V, should it’s support me needed at either world. There have been reports of The Ark aiding in the support of Imperial fleets within the system but no exact accounts can be given.

Space Marines of the Omni Legion enjoy the sounds of music that can be heard throughout the Ark, systems set up throughout the walls to play melodies meant to help Marines and Companions focus on their tasks at hand or even to help them relax. Music also plays a large role in battle as the vehicles of the Chapter are capable of projecting these sounds over large distances as a means to raise moral and intimidate their foes. It works to attract the attention of the enemy making for a great distraction so squads moving to flank can approach with ease.

Should the entire Chapter be dispatched to multiple campaigns they will leave the ship to their Companions with the Adeptus Mechanicus to watch over while protected by a small legion of Skitarii who’s weapons would reduce any intruders to vapor.

The Ark's Vault
Deep within the Ark is the Chapter’s personal storage of all relics, technology and other valuables. Appropriately named the Vault. Deep within the dark confines the faint glow of Skitarii eyes can be seen once you enter, awaiting to slay any intruders who make it passed the defense or those who wander too far from their guides.

The only members permitted to enter the vault are the Curators, the Lord Curator (High Chaplain) and the Chapter Master himself. Any other who attempts to enter would be stopped by the Vault's security protocol which seals the Reclusiam and alerts everyone on board the Ark. Even if they reach the door they'd need to pass the pair of large Battle-Automata that stand at the entry. Wielding massive blades larger than an even the Chapter's largest Astarte with a powerful Mauler pattern Bolt Cannon attached to their left shoulder. A shield attached to their left forearm capable of extended in size to properly protect the machine and any allies standing behind it. Instructed to guard the entrance to the Vault and kill any who are deemed a threat to the Reclusiam and anyone inside.

Marines of the Chapter are only welcomed into the Vault by the Curator’s once they achieve the rank of Sergeant, granted a weapon and helm from the very Vault itself.

Most relics of the Chapter are kept here while the Captainsof the Chapter guard relics unique to their Formations. It’s believed that many of these relics are taken from Renegade Chapters.

The remains of their Dreadnoughts are kept here should they be damaged beyond repair.

Chapter Organistion
The Chapter’s Serfs called "Companions" are treated well compared to the Serfs of Chapters like the Imperial Fists or Iron Hands. They aren't abused, looked down to or ignored. The role of an Companion is to provide the Space Marines or their ships with whatever they need when they need it.

During their travels they'll often catch communications from fellow Astartes or other Imperial forces that require aid. The chapter may come to assist their allies should the call be there. The sheer size of The Ark makes it possible to house several thousand more hands should a planet wide evacuation need their help, keeping the civilians locked away from Astartes or Companions should Genestealers or similar Xenos be blending with the populace. The closest Imperial world will then be the next location to drop off the masses before the Chapter moves on.

Unlike most Marine Chapters The Omni Legion have 5 Companies. This Chapter is divergent from the Codex Astartes. Having different Formations fill different purposes for different scenarios. Ranging from a Formation meant for low-scale excavations and training of recruits or forces meant to clear out hostile native life, support allies or to lay waste to the Imperium’s foes by leaving their world a flaming ruin. Claiming to follow the part of the Codex Astartes ordering that Space Marine Chapters are not meant to surpass 1000 Astartes but the Inquisition suspects this may be false. No evidence during inspections by the Inquisition with additional information provided by the Adeptus Mechanicus has shown this to be the case. The Chapter’s ability to replenish their numbers quickly is what drives these suspensions.

The 1st and 2nd Formations have been known to track down and Renegade Chapters and execute them with extreme prejudice. Should the technology of these Renegades remain untouched by the taint of a chaos it is taken by the Omni Legion. Most of it finds its way back to the Forge World of Roitheta but sometimes their work is rewarded with permission to keep many weapons and armour they reclaim for the Imperium.

Ranks of the Chapter
The ranks of the Adeptus Astartes are different to typical Chapters in their names:

Initiates (Neophyte)
Space marines in training, making up the bulk of the 5th Formation. After several years of training they’ll complete their training, only then will they deemed worthy warriors and explorers for the Imperium.

Battle Brother
A Marine who passed his trials will join the rest of the Chapter. Equipped with the typical gear of an Astartes. The backbone of the Chapter these Marines range from Tactical Squads to the mighty Centurions.

Sergeant
Squad leaders of these Astartes are granted this title because of their iron resolve and unbreakable bond with their battle brothers. Wielding a single relic weapon from the vault on The Ark and donning the helm of a past brother from battles long since passed. Guiding his brothers through the forests, deserts, tundras and hell landscapes to find relics and technology left from ages long since passed. Destroying the enemies of mankind as they go.

Lieutenant
Only in the recent 999.M41 has this rank been reintroduced with the rise of the Primaris Marines. Two of these Astartes operate directly under the Captain of each Formation, working to relay their orders to the Legionnaires. All Lieutenants are Primaris Marines as the Omni Legion Chapter believes that these new Marines will need to become integrated into their ranks should they be able to carry out the Imperium’s will at their fullest.

Captain
Space Marines who reach this rank are put in command of a Formation and are expected to get results as they are accompanied by the Formation's other leaders. Given the freedom to approach battle however they see fit the combat doctrines of the Captain's influence their own Formations and helps the Chapter evolve in their methods of battle. Every Captain is entrusted with two relics from The Ark, any others they claim must be returned to The Ark.

Chapter Master
The leader of the entire Chapter is given this rank, tasked with directing the fleets as commanded by the Adeptus Mechanicus. Rarely seeing the battlefield once the title has been taken the Chapter Master will personally lead the Chapter if a system wide threat has been determined. Unwilling to stand by and do nothing while his brothers go to battle he will battle the enemies of the Imperium while wielding countless Chapter relics.

Specialist Ranks
These are Astartes who have served the Emperor’s will for many decades to centuries or have been created to serve a specific purpose. Seen as the pride of the Chapter and always guiding their Astartes brothers through the battlefield or forging them and their doctrines through intense training. Ranging from simple Astartes who have seen countless battles on thousands of worlds to Astartes who are powerful Psykers and can turn the tide of a battle with a simple thought.

Chroniclers (1st rank Librarian)
Keeping to The Ark’s inner sanctums where their role is to record the Chapter’s exploits. They spend days locked away writing miles of paperwork and working on creating the lists of bounty the Astarte’s return with on their travels. Trained by the Omni Seers of the Chapter their training is directed by the Lord Seer.

Omni Seers (2nd rank Librarian)
Trained to use the powers of the Warp these mentally trained soldiers can bend reality as though it were their plaything, lightning bolts from their fingers to bursts of flames from their eyes. Wielding Force Staves designed to help them channel their powers in powerful melee strikes they can lay ruin to foes should they enter the battlefield.

Appearing alongside their non-Psyker brothers on the battlefield as part of the Formation leadership they are able to guide them through any fog of war.

Lord Seer (Head Librarian)
Commanding everyone within the Librarium and pushing for further research of the Warp and their ways to harness its power. It is the duty of this single warrior to be an example of how one should be able to wield their psychic might. The research performed through their leadership has stockpiled for many millennia.

Curators
The role of these Marines are the organization and documentation of the countless treasure and relics that are accumulated over the millenia. Outside of battle it is the duty of the Curator to lead morning prayers onboard the Formation’s Battle barge in the Reclusiam and clean all relics of the Chapter that is with them. Onboard The Ark they work days organizing and maintaining the Chapter’s relics or anything that is recovered by Formations and brought to be placed into the Vault.

Each Formation has one of these men as part of their leadership. Keeping moral high the Curator charges into battle to destroy the foes the Imperium deals with every moment of every day, inspiring his fellow Legionnaires with his words and demeanor.

Lord Curator (High Chaplain)
Not having any direct subordinate like most Chapter’s he commands the Curators and watches over all the Chapter’s relics whilst they remain on the Arc and any relic that should be moved must go through him. Always near the Vault at all times of the day he and the Chapter Master are the only ones who can open it without consequence, opening the great door at the end of every day for the Curator’s under his care to go in and perform their duty.

Being one of the few on the Chapter’s Council it is his duty to relay all concerns or discoveries to the Captains and Chapter Master. Rarely ever going to battle he is still one of the deadliest Astartes on The Ark, rumored to match the Chapter Master himself.

Techmarines
Commanding many of the Servitors belonging to the Chapter they bless and maintain the weapons and vehicles of the Formations they stand with before a battle. Spending decades learning from the Tech Priests of Mars they come back to the Chapter as beings who speak to and for the Machine Spirit. Commanding a small force of Servitors on the battlefield they will bring more to work in excavation missions.

Lord Forger (Master of the Forge)
Working alongside Explorator Myrddin in the depths of The Ark he works to maintain and guard the technological discoveries made by the Chapter while providing his insight into the Machine Spirit of every vehicle owned by the Chapter. Leaving his work unattended only should a meeting of the Council be held.

Hospitallers
The medics of the Chapter who go into battle and work to keep their fellow Astartes alive or extract their Geneseed should they fall in battle. Their primary purpose is to aid in the creation of an Astartes through their gene therapy and their Gene-Seed and organ implantation. Most working within the Chapter’s Apothecarion.

Lord Hospitaller
As master of the Apothecarion he organizes the placement and work of every Hospitaller in the Chapter. Never leaving the confines of The Ark his role is to protect the Chapter’s Gene-seed and lead tests for future recruits for the Chapter with the assistance of the Magos Biologis.

Formation Ancient
The flag bearers of each Formation walk into battle alongside the Captain and his HQ, holding high a flag that displays the very Formation’s emblem and fighting alongside his brothers. Running into battle with the Curator he rallies his brothers alongside him to strike down the foes of mankind. The words of the Curator and the sight of the Ancient are enough to drive any Astartes to look death in the face and laugh as they cry out their loyalties to the Emperor and his Imperium.

Veteran Marines
Powerful soldiers from both the 1st and 2nd Formations. They have received centuries of battle experience through countless battles from the other Formations before they join these ranks. Trained to use all forms of combat to tackle all situations they’re the only ones granted use of the Chapter’s Terminator armour. Broken into teams of “Sternguards” or “Vanguards” depending on the mission and roles necessary to achieve victory.

Primaris Veterans
Much like the Veterans of standard Astartes these Marines must go through the initiations of the 5th Formations as Intercessor squads then spend decades as both a Reiver squad member and a Hellblaster squad member. Upon completing their training they will join the Veterans of the 1st Formation with the skills required to carry this title. Primaris veterans are given the chance to join the 2nd Formation as Aggressors.

Honour Guards
Like most Chapters Twenty four exist within the Chapter. Though unlike most Chapters, Four guard and fight alongside the Captain of each Formation and the final Four stand alongside the Chapter Master. Promoted from the ranks of the 1st Formation through its Veteran Squads. Though this isn't the case in the 2nd Formation which gets their Honour Guards from their own Veterans. This was decided by the Chapter because the smaller command force of each Formation compared to their numbers made the life of the Captain vital. Should the Captain fall in battle these powerful Astartes would stand in his place till an official replacement is decided by the council.

In the case of the Chapter Master's Honour Guards, one of these men are chosen from the 1st, 3rd, 4th and 5th Formations. Each represents the Chapter and have casted away their chance to become their Formation's Captain in exchange for ensuring the safety of the Chapter Master.

The Omnissiah's Champion (Chapter Champion)
Chosen from the Chapter Master's Honour Guards this one Astarte holds as much power as the Chapter Master while on the battlefield, wielding powerful relics from The Arks vault and donned in an ancient suit of power armour that is unlike anything else in the Chapter. Colored red to put his faith and loyalty to the Omnissiah on full display to everyone before him.

The common weapons wielded by him as a pair of swords that spark with the same light as the Champion's Blade, though these blades are smaller they are nearly if not just as deadly. Upon the left arm of the suit of power armour is a powerful stormbolter which surpasses those used by even the Chapter's most powerful Terminator squads.

Those few who see him speak of warriors of the Chapter who accompany him along Explorator missions with the Mechanicus, these Astartes are clad in an armour in the same crimson as him. There is nothing more known about them.

Companions
''The Serfs of The Omni Legion are known as “Companions”, their duty is just like that of any other Chapter Serfs. Like the Ultramarines and Salamanders they treat their Serfs well for their duty to their Astartes masters. ''

''Each Legionnaire once they achieve the rank of Battle Brother is assigned an Companion whose duty is to provide the Marine with a companion that cleans his quarters and armour. Bringing him his meals should he be too busy to go get meals himself like most other Astartes. Though Companions may be seen as personal slaves to some it’s far from the truth as their Space Marine seniors value them as they would any other Battle Brother.''

Apprentices (Artificer)
Companions whose duty is to aid the TechMarines and Adeptus Mechanicus have this title. It's very uncommon to see Companions in this role as the heavy work is handled by Servitors in the effort to carry materials, tools and assist in the repairs.

Head Chef (Master of the Refectorium):
In charge of preparing meals for all Space Marines and other Companions on The Ark, the Head Chef has the duty of organizing all the cooks and ensuring meals get made on time all the time. Something to note is that meals are determined days in advance to suit the activities of the Marines such as the portions or what form the food should come in.

Specialists (Medicae)
Personal aids to the Chapter’s Hospitallers, only some of the best educated Companions can become Specialists because of the knowledge needed to even understand the biology of a Space Marine. Especially now with the newly enlisted Primaris Marines.

Watchers (Sacratium)
Personal Companions to the Chapter’s Curators they will be tasked with assisting in cataloging and organizing the relics the Chapter recovers on their travels.

Aids (Scribellum)
Recorders of the Chapter’s duties and developers of the Chapter’s purity seals. Assisting the Chapter’s Chroniclers (1st rank Librarians) in fetching research materials or tools to record. Long days and nights of keeping candles lit and ensuring the Chroniclers have ink.

Fleet Master (Ship Master/Ordinator of the House)
This one person is in charge of commanding the massive Starfort, everything done to command the ship and the other Companions within are thanks to him. When the Chapter Master is away from The Ark it’s his duty to protect the ship and everyone and everything inside. The only one outside the Chapter or Captains that outranks him is the Explorator of the Adeptus Mechanicus, though the Explorer's interest in commanding the non-Skitarii crew is nonexistent.

Order of Battle (as of 111.M42)
The leaders of the Chapter operate and command the Chapter from The Ark, a council between the leaders of all the Formations and the Chapter's specialists meet in the hall of the Lords. Located in the heart of the massive Fortress Monastery they sit at a large round table to discuss the future of the Chapter. Strategies of the Formations and discoveries made by Librarius and Reclusiam are other important topics. Even the ancient Explorator who discovered the Astartes aided by lower ranked Magos hold a place in the Chapter's higher ranks.

Each Brother may be assisted in missions by a Servitor, assigned to carry extra ammunition or attachments for weapons. Typically used in excavation missions. An Initiate will not be permitted the use of one to teach them proper discipline as part of their training.

Formations of the Omni Legion are lead by a Captain accompanied by: a pair of Lieutenants, a Curator, a Hospitaller, an Omni Seer and most with a number of TechMarines alongside him.

Formations are not labeled through colored paldrens but rather their designated emblems and squads are numbered.

Unlike most Space Marine Chapters that have 10 Companies, the Chapter has 5 Formations with roughly 200 Astartes per. This is a result of the Chapter being founded from the 200 Astartes whom became the 1st Formation as future Formations were built on in time. By the year 398.M36 the Chapter became fleet based and each Formation is granted use of their own Battle Barge due to the larger size of their Companies. Each fleet consisting of a lead battle Barge and four Strike Cruisers which themselves are each aided by three Firestorm Frigates.

Interesting to note is that the Terminator units within the Chapter are actually a large mixture of the Tartaros Pattern and the more standard Indomitus Pattern, though these are reserved for the 1st Formation and 2nd Formation. Due to their superior defenses the 1st Formation and Chapter's Captains are the only ones granted use of the Cataphractii pattern. Though the former typically uses them for missions on board Space Hulks or when boarding enemy ships.

The chart below, is the Order of Battle of the Omni Legion as of 111.M42:

Combat Doctrines
The Omni Legion is built upon warfare of every kind ranging from infiltrating enemy lines in order to take them out from within to leaving nothing left through overwhelming firepower. Plasma, Melta and Lasguns are the most popular weapons for the Chapter because of the Forge World of Roitheta specializing in such weapons, despite this they are still trained as effectively in melee combat. The only melee specialized troops are Assault Squads, Terminator Squads or the Chapter's Dreadnoughts.

Typical strategies of the Chapter involve collecting as much tactical information on the opponents location, numbers and the environment. Many Tactical teams are sent ahead to set up ambushes with heavy weaponry or cause environmental hazards. Despite this the Formations themselves follow additional tactics unique to themselves. Their Tactics will be detailed ahead.

It has become normal for these Legionnaires to prefer blades produced by the Forge World of Roitheta which are more akin to power swords than chain swords, not nearly as effective as power blades they are much easier to produce.

Formation 1
This Formation is one of the most battle hardened of them all, like most Chapters. The Omni Seer rains fire and lightning from the sky to smite any being that dares challenge the Chapter’s might as the Curator marches the battlefield encouraging his brothers to rally by the Ancient whom holds their Formation’s flag high. The hulking Dreadnoughts march across the war torn worlds to purge any enemy of mankind that dares cross their paths.

The Veterans within the Formation have been trained to infiltrate enemy lines to catch them by surprise if Intel suggests the Formation is drastically outnumbered. The most common use of this is tactic is setting explosives throughout the area or to diverge enemy attention away from the bulk of the Formation to ease flanking with an eventual overwhelming strike of firepower.

Spending the millenia scouring the galaxy for relics or lost technology they demonstrate the Chapter’s true purpose with the might of the Omnissiah's chosen. Space Hulks are the primary targets of the Formation during their ventures though keeping their channels clear for communications from fellow Astartes or other forces of the Imperium.

Formation 2
With the mission to guard the Roi sub-sector these brave soldiers of this Formation has been known to operate as far as the Nephilim and Charadon Sectors. Similar to the 1st Formation this Formation possesses Veterans within their ranks with Terminator armour. As a means to distinguish themselves in battle from the 1st Formation the 2nd Formation uses an alternate colour scheme. Primary black with red highlights.

Unlike most of the Chapter that will be willing to negotiate a temporary alliance or ceasefire with Xenos should it prove to to be purely in their benefit the members of 2nd Formation do not. The nature of this Formation is to ensure no threat remains. Peace is never an option and they’ll slay all the enemies of mankind. Despite current relations between the Imperium and the Ynnari they refuse to work with them but they will not fire upon them for that is the will of Roboute Guilliman and presumably the Omnissiah.

Working also as a designated cleanup crew of the Chapter through the extensive use of flamers. If the world still holds value as an Imperial world or further investigation is needed then the corpses and wounded of their foes are set ablaze, especially to prevent the Orks whose form of reproducing is spreading their spores.

Despite the contempt many brothers may feel toward the 1st Formation they are determined to fulfill their role as warriors of the Imperium. Even if it is within the confines of such a small section of space.

Formation 3
Primarily deployed to support another Formation before they deploy for a mission or provide aid to a local planet who may be under siege but is already being supported by the Imperial Guard or another Space Marine Chapter. The Dreadnoughts and Tactical Squads charge to the front lines to draw fire away from lighter armored allies.

The use of Reiver Squads have become important to flank enemy forces to catch them off guard, aiding in creating gaps in the enemies formations through distracting or sabotage. Openings for allies allowing them to charge through the enemy formation and finally break their ranks and use the opportunity to pick the enemies that either attempt to flee or are cut off from their allies. Assault Squads hold the ground against approaching enemies for their more ranged focused allies to fall back and provide fire support, very rarely does one in this Formation make use of Jump Packs unless there are none present as it is.

Many times the Formation will assign their squads to assist in the evacuation of civilians as a means to ensure their safety in case the defense line is broken, working to get everyone off world as quickly as possible before joining the bulk of the fight. Assigned Battle Brothers will travel with Imperial Guards to perform their sweeps, the enhanced soldiers work as a way to detect the enemy faster and to draw enemy fire to ease their allies.

Formation 4
The majority of missions taken by this Formation is to be a support force accompanying another Formation or other Imperium Forces whose duty is to tear down enemy defenses no matter the walls. HellBlaster squads inside Repulsors as Devastator squads await deployment in Land Raiders. Razorbacks have been modified to play purely an offensive role in order to assist the overwhelming firepower of the Predators. Dreadnoughts shake the very Earth as they charge alongside the lines of armour.

Once an Initiate completes his promotion to a Battle Brother they'll join the Devastator squads which play an important role in defending strategic positions. HellBlasters accompany Devastators as they both play the vital role causing as much collateral damage to enemy infantry from their distance while armored support take out other vehicles. Sometimes these infantry units will join infiltration missions with Tactical squads.

The sheer number of armored support the Formation possesses makes the additional TechMarines and their Servitor assistants mandatory. Many Servitors join the front lines with the Tactical Squads and Centurions to carry equipment or perform mid-mission maintenance. The Mechanicus provides many Servitors to the Chapter so it's common for those in this Formation to be used as fodder during full frontal assaults.

All members of the HQ squad for this Formation are equipped with Terminator pattern armour to ensure their safety

Formation 5
This Formation is primarily used to train their Initiates. Intercessors are the most battle hardened outside the HQ Squad so they'll be the first ones to run to the front lines with their superior armour and weapons. Unique suits of power armour are provided to the Initiates that don't need to make use of the yet-to-be implanted black carapace.

The training these Initiates go through takes many years of working together with their commanders scouring planets pointed to them by the Adeptus Mechanicus. Dig sites being worked on throughout the planet after the local populace has either been negotiated with or dealt with.

Specific Initiate Squads are given the roles of Infiltrators to sneak behind enemy lines and either gather as much information on their forces and positions as possible or cause damage to their vehicles without being detected. Infiltrators are also used to hunt for enemy commanders during larger skirmishes should the Chapter encounter enemy resistance. Initiates have also been trained to survive for months to years while away from most of the Formation should an overwhelming enemy force appear and the Formation needs to fall back, going as far as to divide their forces to gain a tactical advantage. Taking this chance to further their training they’ll spend this time picking apart enemy forces.

After spending decades within this Formation Initiates will go on to the 4th Formation to train as Devastators. Intercessors are given the choice to further their training within the 4th Formation as Hellblasters or the 3rd Formation as Reivers.

Ships of the Chapter
After the Chapter became fleet based they were provided with additional ships to aid their fleets in their long missions that took them all across the Segmentum Ultima.

The Omnissiah's Hunter
The Battle Barge used by the 1st Formation, equipped with powerful weapon batteries all along the haul and additional Bombardment Cannon. Unique to the Battle Barge are massive harpoons sometimes used to anchor the ship to Space Hulks and try to redirect it's course with the aid of additional Strike Cruisers that will anchor with their own but theirs use powerful magnets rather than hull piercing spikes. The most common purpose is to pull enemy ships along with the intent to use them as battering weapons or to capture them.

Blade and Claw
The Battle Barge leading the 2nd Formation, similar to most Battle Barges it has a large collection of weapon batteries. Although with additional plasma cannons along the bottom for close engagements. The front of the ship possess a large reinforced blade for ramming purposes, during these close engagements the Formation may send Terminator units on board to disable the ship and kill the crew while they struggle to recover. Another popular tactic is when getting close the ship will drop powerful Melta bombs intended to enter the enemy ship via the massive gaps in their hull from the earlier plasma cannons.

The Majestic Guide
Built to be a fast ship that provides accurate fire support. Rather than being defended by the fleet's Strike Cruisers 'The Majestic Guide' fights alongside these ships. Typically keeping its distance as it will circle the enemy and fire at them from afar, only moving closer to deploy fighters, giving them a higher chance of engaging the enemy ship before being fired upon without Battle Barge fire support. As expected the ship is built to be faster for its uses in evacuations for stations and small cities.

Armour of War
A warship unlike any other in the Chapter. 'Armour of War' is a Battle Barge reconstructed many times as it has been damaged heavily through countless campaigns. A thick armour plating that has changed its overall appearance, many wouldn't even tell it's a Battle Barge outside of its size. Built to engage enemies on any front, unlike many Battle Barges within the Chapter this one carries less Astartes, part of that role falling to the Strike Cruisers. Powerful cannons that blow apart enemy ships and a thick hull that can take direct plasma shots should the void shields fall.

Unto Pride
[Information unavailable] 

Beliefs
The Omni Legion will come to the aid of those of the Imperium if they're in their desperate hour. Believing the people who swear their loyalty of the Emperor of mankind are worth protecting, the Marines of The Omni Legion would stand between a group of civilians and an Ork firing squad. Despite this the Chapter’s duty does mean that should something as grand as an STC be involved then they must protect it at all costs, even if it means leaving the innocent or even fellow battle-brothers behind to perish in battle. The Chapter would never risk the lives of a planet’s populace without attempting another method, such as attracting the attention of all the enemies or working to evacuate cities before a battle can break out.

Like many Astartes they don’t view The Emperor as a divine entity and worship of him as such is frowned upon among the Astartes. Though they don’t interfere with such worship or force their own beliefs upon other Astartes or citizens of the Imperium of man. The Omni Legion believes the Omnissiah is in actuality the the Emperor of mankind, thanking the Emperor for things ranging from the bolters in his hands to the very ships they stand in. As a result the Chapter's Curators are NOT the priests of the Chapter's Formations, they still work to safeguard their relics and inspire the men in battle but the role of spiritual leaders fall to the Tech Marines.

An Occulobe is the leading reason why Astartes in this Chapter always wear helmets when leaving the confines of their ships but over the millennia it has become a tradition. The intention of covering their faces is because they believe their roles are to defend the Imperium and aid in it's preservation, because of that they're faceless tools made by the Omnissiah and nothing more.

Recruitment
Recruitment for the Omni Legion comes from the world of Tallon V. The populace of the world has made advancements in the recent years because of the Chapter and the discoveries they have made. Large cities created to house the majority of the civilians while the military makes use of the harsh environment to further train their soldiers.

Every 150 years the Chapter will send the 5th Formation to collect new potential Astartes. Families with more than one son will be required to give up their youngest as long as they are between the ages four and five. Children found to be compatible would be taken to a randomly selected Death World under the watch of selected battle brothers with few supplies, the children would need to survive till they reached the age of nine before taken back to The Ark to begin their Gene-Seed implantation. The Astartes were instructed to treat the children as enemies during this time but not to seek them out but if they were to encounter them they were to kill them as they're role was to watch them, not guard them.

Before these children are actually sent they will be subjected to quick examinations to determine their health, another is to see how pure their genes are. Should any of the children display one condition that could be a result of inbreeding then the child will instead be sent to the Schola Progenium to pursue other lives. Their family will be then investigated, once the parents are determined they will be sentenced to death. Any remaining members of the family will be stripped of their positions and sent to the slums. All records of the family purged from Imperial records.

The family would be visited by their child whether they succeeded in becoming one of the warriors of the Imperium or they became a Companion, either way they’d be given time for leave to see their family one last day before returning to their duty and will never see them again.

Battle Brothers
The ceremony in which the Initiate graduates to the rank of Battle Brother details them presenting whatever they recovered in their latest mission to the Formation Curator and their power armour is presented by the Formation’s Techmarine. The Formation’s Captain makes a point of being present to see his men take the next step to becoming full fledged Astartes.

Once the newly appointed Battle Brother has been encased in his armour he stands with the Curator and is handed the relic he had uncovered. Holding it above his head as his battle brothers cheer. Soon he will be assigned a role as a Devastator or Assault squad member.

Sergeants
The Marine enters the Ark’s Vault with a Curator. The Curator guides them through the maze of thousands of containers, cages and displays. All to find a section of the Vault which is divided off from the rest and has the purpose of holding ancient weapons and armour given to those who surpass the rank of Battle Brother.

Once they arrive the Curator will lock them inside. As that’s done, the room will darken and the only sources of light will be on the weapons and helms of past Astartes that are proudly put onto display. The Marine removes his current helmet and goes to pick one from the lines of helms from the ages gone by.

Captains
Upon the death of the Formation’s Captain a meeting of the other Captains is held to determine which Honour Guard from the Formation should be made his successor. Once one has been decided upon he is called to stand before the entire Formation with their Curator. The Curator addresses the Formation as the he announces the news of their new Captain and he is blessed by the same Curator.

After the Ceremony is finished the entire Formation is given the day to rest as the newly appointed Captain goes to meet every member of his Formation.

Funerals
When an Astartes personal Companion dies in battle or of old age they will have their skull removed and their name will be engraved on the forehead. Then the skull will become part of the Astartes armour, usually along the pauldrons.

When an Astartes perishes in battle his body will be cremated and placed into a coffin after the Progenoids has been extracted by an Hospitaller. After a campaign all Legionnaires who perished will have their funeral held in mass by the Formation on board their Battle Barge, being headed by the Formation’s Curator. If the Astarte had an Companion alive at the time of his death the Companion will be given the chance to give his eulogy, if the Companion also perished or the Marine did not have an Companion assigned to him by the time of his death the eulogy will be handled by the Curator.

The funeral service goes as such: ''       *One, be given a painless death and their skull will be added to the coffin’s contents. ''
 * 1) Before the service can begin every Astarte in the Formation must bend to one knee and speak the phrase “Never forgotten and never lost, only remembered and reclaimed!” This is repeated ten times. Then the entire Formation stands up and places their right hand over their chest.
 * 2) The Curator of the Formation leads a line of Coffins holding the Ashes of the deceased Astartes to the front of the Great Hall, followed by any Companion who is to attend the funeral. The coffins pushed by Serviators are brought to the front where the Curator gives a speech to the entire Formation. 
 * 3) Each Companion gives his word on the deceased.
 * 4) The Curator presents the skulls of the previous Companions from the Astarte’s armour and reads out the names of each one as they’re engraved on the bone. Placing them into the ashes inside the coffin one after the other. The old armour is repaired and cleaned for the next Astartes who’d replace the deceased. 
 * 5) The coffins are then closed but not sealed. 
 * 6) The Astartes of the Formation return to their duties. The Companions that lost their superiors meet with the Curator who summons the Hospitaller and a Tech Priest. The Companions are given two options. 

       *Two, be succumbed to Mind Cleansing and be reassigned to a new Space Marine.

     7. After the choice is made the coffins are sealed and eventually added to a Mausoleum aboard The Ark.

Gene-Seed
''The physical appearance of the Astartes is relatively average with a lighter skin tone and dark but cloudy eyes. The average height is much larger than most Astartes, putting them closer to the new Primaris Marines.''

Genetic Idiosyncrasies/Mutations
After being rediscovered by the Imperium there have only been 3 mutations to their gene-seed found after thorough tests and examinations.
 * 1) The Betcher’s Gland, similar to the Imperial Fists and Raven Guard Chapters. The Omni Legion doesn't have access to this organ’s abilities to spit acid or digest food easier than the average Astartes.
 * 2) The Occulobe:  Astartes of this Chapter are very sensitive to ultraviolet rays, when leaving their ships they are to keep their helmets on at all times to ensure they don’t get irritated. It won’t cause any permanent damage but it’ll make it difficult for the Marine to see anything unless they have something to help block those rays. Their eyes have a dark but cloudy appearance.
 * 3) The much larger and thicker bone structure: this makes the Marines range from roughly 12% to 15% larger than others, it helps make the Astartes much more durable and resistant to damage. This has also made it harder to create Astartes whose bones may tear through their muscles and skin causing them ceaseless pain and agony until they're put down. This mutation has a 20% chance of causing the Astarte's development to fail.

Additionally Astartes of this Chapter seem “calmer” than some other Space Marines, not as though they’d always seek a peaceful resolution rather than fight but they’re capable of maintaining their composure even in the presence of the enemies of mankind. This is mostly present against the Eldar and Tau. Further details listed later.

Records are kept close to the Adeptus Mechanicus and the High Lords of Terra as all further research and tests are carried out even in the modern age.

DeathWatch Service
Veterans of the 1st Formation may be picked to join the DeathWatch, serving their vigils with Watch Fortresses "Prescience" or the "Eye of Damocles". Most commonly the members of the Chapter that join the Deathwatch are Astartes trusted with the use of Plasma or Las-weaponry due to their experience with such. Rarely do members of the Chapter make use of the DeathWatch Terminator armour unless absolutely necessary. Veterans of the 1st Formation once they finish their service to the DeathWatch are transferred to the 2nd Formation. Reasons for why can only be suspected that the Chapter doesn’t want to risk mixing brothers who are expected to keep a calm demeanor around xenos for the safety of valuable technology with Astartes who have been expected to and ordered to slay every type of xenos they encounter.

Dark Angels
There are very few records of the Omni Legion encountering the Dark Angels until recent centuries. Typically when this occurred, it would be at the scene of a Space Hulk. The earliest entry is both Chapters arriving at a Space Hulk in the year 896.M34. The Angels themselves didn’t seem to take issue with the Chapter being present at the Hulk. After finishing their work the Dark Angels left the Omni Legion to harvest the Space Hulk for relics and ancient technology for the next few months. What the work was is unknown to the Omni Legion as this information was kept to the Dark Angels themselves and the Omni Legion didn't press.

The Dark Angels, their successors and the Omni Legion all appear very secretive, but for very different reasons - for the Omni Legion it's what they recover on expeditions and the Mechanicus finds useless for their research. At least that’s what is seen by the rest of the Imperium. Both factions have worked more frequently with one another as millennia passed, each providing intel about various matters.

Ultramarines
They're not fond of the Ultramarines’ strict and aggressive nature toward anyone who doesn’t strictly adhere to the strictures of the Codex Astartes. The Ultramarines often tends to pry into the Omni Legion’s work often, especially when they are near the borders of Ultramar during their missions. Despite this the sheer number of successor Chapters they have and the proximity to Ultramar would be a fool's desision not to ally themselves with the thirteenth First Founding Chapter.

After the return of Roboute Guilliman and the rise of the Primaris Space Marines, the opinion of the Ultramarines became rocky because of the forceful introduction of the Primaris Marines, though the aid they provided has helped the Chapter, specifically the Hellblasters. Despite this the Omni Legion don't care for Roboute Guilliman himself.

Salamanders
Relations between the Salamanders and the Omni Legion has always been great because of their similar outlook on their Serfs and the Imperium’s citizens. The Chapter sometime lends aid to the Salamanders if they believe they’re close to finding one of the Artefacts of Vulkan, though this has never truly yielded results. Working with the Salamanders has become one of the greatest honors among the Omni Legion.

The Second Formation of the Omni Legion, due to their more common use of Melta and Flamer weapons, work best with the Salamanders in actual combat. In battle, fighting side-by-side, the flames wash over the Astartes armour. Despite their more aggressive tactics the very idea of fighting along the sons of Vulkan keeps the 2nd Formation in line.

Ashen Knights
Similar to the Salamanders Chapter the Omni Legion has a deep respect for their fellow Astartes from the Ashen Knights who value all life. The Chapter may disagree with some of their choices of who they deem worth defending but it doesn't intrude on their missions. Since both Chapters hold such importance of the lives of civilians it isn't uncommon for the Omni Legion to send the 3rd or 4th Formations to aid in the defense and evacuation of civilians if threats such as the Tyranids or Orks are present.

The details of the Ashen Knight's organization is a secret held by the Omni Legion who don't think any such actions should be deemed heretical if used for the benefit of the Imperium of man. After all, what harm is there in having reserves...

Relations to other Imperium Forces
The Omni Legion may be Astartes who have taken a vow to defend the Imperium against every threat in the galaxy but they aren't everywhere and there are situations that even the Space Marines can't or won't be capable of handing.

Astra Militarum
The brave men and women of the Imperial Guard make up the bulk of the Imperium’s military might and the Omni Legion aren’t ignorant to this fact. Numerous times the Chapter has come to their aid. Despite the history of Space Marines basically stealing the glory of victory and leaving the Guard with nothing but their dead, members of the Omni Legion don’t fall under this and have nothing but respect for the forces of the Astra Militarum for facing such unbelievable odds.

The first time the Omni Legion notably encountered the Imperial Guard was after the discovery of Tallon V. In the year 497.M34 on the planet of “Patron” the Imperial Guard of the world attempted to hold off an Ork siege for months until Drop Pods fell from the sky and teams of 1st Formation Space Marines stormed the lines to aid the Guards. Within days the additional aid from another Space marine Chapter arrived and with their assistance the forces the Orks were wiped out.

The Omni Legion do what they can to make the Guard feel accomplished and will not stray from any details when speaking of the bravery of any Guardsmen.

Adeptus Mechanicus
Thanks to Roitheta aiding in the recovery and birth of the Omni Legion they believe themselves to be indebted to the Adeptus Mechanicus as a whole. When orders from the AdMech come in the Omni Legion are fast to act and race to complete their missions. Despite these orders from the Mechanicus the Chapter is still given freedom on HOW they accomplish these missions as long as they fulfill their purpose.

Many times the Chapter itself will find their own way to the technologies sought by the Mechanicum. The Mechanicus holds a presence on The Ark at all times and the Forge World of Roitheta supplies the Chapter with their weapons and more.

Adepta Sororitas
The zealot behavior of the Sisters of Battle frequently turns the Omni Legion away from wanting to serve with them because of the Sisters willingness to kill anyone who they believe is a heretic.

The first time the Chapter met the Adeptus Sororitas was in the year 393.M36, when they were once known as “The Brides of the Emperor”, in which the world’s populace was thrown into a state of civil war. The 3rd Formation attempted to destroy the resistance, it took mere hours for the rebels to throw down their weapons and surrender to the Legionaires. Days later the Sororitas arrived on the world with the Imperial Guard and to the shock and anger of the Astartes they begun slaying every citizen, even those who never held a weapon as they set hospitals and shelters ablaze. Not allowing a single potential heretic survive this day.

Furious by this the Captain took to orbit to speak personally to the Canoness about this. He towered the woman but she wasn’t threatened by this Marine. Warned that such a reaction to this situation could make the Ecclesiarch suspect that he was defending the traitors of Goge Vandire and he could be a heretic himself. Speechless at such a claim the Captain could do nothing but apologize to the Canoness and turned to leave with his brothers. For a time the Chapter would refer to the Adeptus Sororitas as, “Vandire’s Vixens."

Even after The Age of Apostasy the only Order the Omni Legion will agree to working with is the Order of the Argent Shroud because of their more selfless attitude and outlook on the Imperium. Specifically the Order of the Sacred Flame which works close with the Chapter as their Order was founded and is based on the world “Tallon V” which had been claimed by the Astartes. The Order is known for accompanying several of the Chapter’s Formations as reinforcements that infiltrate behind enemy lines to take out commanders or a primary source of negotiation because of the more human appearance the women possess. Many men with power to do as they wish and either join or surrender to the Imperium. Additional information on this Order is disclosed later.

The influence the Omni Legion bled into the Order and they reshaped into an Order that worships the Omnissiah in name, treating every piece of Imperial technology as holy relics.

The Inquisition
The organization that works as the Imperium's secret police they hold as much power as the very High Lords of Terra, even though they suppository answer to the Emperor himself this isn't enough to gain the Omni Legion's favor. Their treatment of the Imperium's people is only the tip of the iceberg to why these Astartes loathe the Inquisition. Many members of the Chapter needing to force themselves to remain silent should an Inquisitor be around, despite how they feel the power and influence a single Inquisitor possess is still far beyond even the Chapter Master.

Upon the Chapter's creation several Inquisitors left to the Forge World of Roitheta to see the new Space Marine Chapter, they possessed no records of this Chapter and any and all they could find were closely withheld by the High Lords of Terra. Chapter Master Griffith was confronted by two of these Inquisitors while the other 199 Astartes were still preparing to leave Roitheta in search of a recruitment world. He was questioned for hours and much of what he told them was information given to him by Fabricator-General Evienne, claiming they were in fact created as part of the 7th Founding. Unconvinced of this they reported to Grandmaster "Theodore Holoserica" who agreed that this Chapter's origins were suspicious and would dedicate much of his efforts seeking to expose them.

As millennia passed as did the names of those who sought to bring the Omni Legion's past to light, the loyalty the Chapter displayed and even an Order of the Adeptus Sororitas allying with them made it increasingly difficult. Many successors would replace those Inquisitors who obsessed over the Chapter. Calling for as much information about the Chapter as possible. Gene-Seed records, Chapter strength and even detailed reports of all their campaigns covered by both the Astartes and the Adeptus Mechanicus or any other allied forces that may have been present. Despite all this they seem intent on proving something. After thousands of years maybe it's just tradition and it's too difficult to let it go.

Relations to Xenos races
Much like how the Omni Legion won’t hesitate to turn a bolter to agents of Chaos there are countless Xenos races who would suffer a similar fate...some more than others.

=== The Tau Empire === The Tau aren’t a faction they will engage in combat on sight. However if they don’t heed their warnings to stay back they’ll attempt to wipe the Tau out, if they retreat they won’t pursue. Despite the proximity the Omni Legion’s investigations and patrols place them to the Tau empire they have rarely encountered them. Such events only occurring in the last millenia.

If the Chapter can identify a soldier of the Tau Empire as a human they will wipe out all Tau resistance and forcefully take the human deserter to subject them to questioning, beyond that the Omni Legion don’t care what happens to the traitor. The DNA bound weapons of the Tau only have any value to The Chapter if they're from a human, another reason they are so eager to capture these humans.

The Eldar
The Omni Legion never seek conflicts with other Xenos races such as the Eldar because they believe that neither faction would benefit from it. The sight of an Eldar Craftworld will make the Astartes wary to them but only keeping an eye on them should they get too close to their fleets or the world they’re investigating.

The only Eldar faction they ally themselves directly with is the Ynnari, very similar to many within the Imperium this is due to the aid in the resurrection of the Ultramarines Primarch Roboute Guilliman. The 2nd Formation despite their anti-xenos outlook will work alongside these Eldar for this reason.

The Dark Eldar
The Omni Legion has rarely encountered the Drukhari as they attempted to raid nearby systems which managed to get out a distress signal before communications are lost. These few instances resulted in minimal loss to the Chapter but a major loss of Imperium citizens being captured and taken away by the Drukhari into the webway. Numerous attempts have been made to pursue the Xenos as they flee to Commorragh but it has always resulted in failure.

More common sightings of these Xenos in recent Millennia have been of the "Kabal of the broken sigil" as they have launched a massive offensive against the Necron "Sautekh Dynasty" in the Eastern Fringe. A conflicting scenario as both races have proven to be a danger to the Imperium of man. Investigation missions have been launched to survey the conflict in the last 100 years.

The Necrons
The mission of The Omni Legion means that the risk of encountering Necrons is much higher than most other Astartes. They have come to blows with these mechanical foes countless times. The first attempt to converse with these beings resulted with a conflict that lasted 50 days and 49 nights.

Necron technology is banned from being brought aboard any land or aerial transports let alone The Ark because the Chapter doesn’t want to risk the chances of Necrons being able to taint their Fortress Monastery.

The most prominent figure of the Necrons that gets the attention of the Chapter is the Necron Overlord Trazyn. Upon learning of a Necron Overlord who holds such a large collection of relics there have been countless attempts to capture or find him, Trazyn himself has attempted to do the same with members of the Chapter.

The Orks
Due to the location of the Forgeworld of Roitheta they encounter attacks from the Ork Empire of Charadon on many occasions. Typically ending with the Ork fleet being wiped clean from the stars. The green skinned Xenos frequently comes to blows with the world's Titan Legion.

Since the Chapter frequently moves between Roitheta and their next target for investigation the Orks have tried catching onto their patterns and attempted to catch them off guard. Most times it's after The Omni Legion leave Roitheta or when they deploy most of their forces to search. The Orks will attempt to use overwhelming numbers to fight the Chapter to no avail.

The Tyranids
Negotiations are not an option. Kill them on sight. If a planet is suspected to hold either of these species the Omni Legion will deploy the 1st, 2nd, and 4th Formations to destroy every Xeno they can find. This is however very rare as the duty of the Chapter isn't to hunt Xenos. If orders are however to deal with such a threat in the event another Space Marine Chapter, the Ordo Xenos or Imperial Guard are unable to reach the world before them then they’ll do what needs to be done.

Obviously this also includes all forms of Genestealer cults and the worlds they inhabit. It brings great grief to the Astartes should they need to wipe out an entire planet's populace but in order to protect mankind and preserve the galaxy it must be done.

Captain Lucan
One of the most well known and fondly remembered Caprains of the Omni Legion's history, Lucan was the Captain of the 1st Formation till the dawn of the 42nd Millennium. He wielded a relic of the Formation, a sword he named "Helm Breaker." He was tall, even for an Astarte. Lucan was what many thought was a the perfect example of a what it meant to be a member of this Space Marine Chapter, he was wise and only took to the field if he believed he was needed. Despite this it was how he'd ultimately die by the hands of Kharn the Betrayer during the Fall of Cadia.

His earliest records that can be traced back to aiding the leadership of the 1st Formation as an Honour Guard to Captain '''[REDACTED]. '''Lucan's time as Captain wasn't as long as most of the Chapter though his leadership was inspired by that of Artorias' so his role as leader was matched by his role as warrior.

Captain Lionel
The current Captain of the 1st Formation, he was assigned this position by orders of Roboute Guilliman with the introduction of the Primaris Marines. Despite the initial anger and spite over the idea the Chapter kept quiet and let it happen. Tradition dictates that one of the Formation's Honour Guards are to succeed the Captain at his passing so the idea that an unproven Astarte was tasked with leading a Formation was most concerning.

His weapon of choice is a relic given to him by the Chapter Master after his arrival, it is in truth a relic taken from a renegade Chapter when they were wiped out. This weapons is a sword similar to Lucan but this one was build into a shield as its sheath, the shield would provide power to the blade to ensure it always sparked with energy. It's name was "Cerberus' Fang".

Lionel makes use of the newly implemented Mark X: Gravis armour

As the decades passed the Chapter's relations with the Primaris marines improved drastically through their service and thus Lionel's relation to the rest of the Chapter has grown from bitter to respected. Though many still miss the late captain Lucan.

Captain Vilhelm
The most violent and aggressive of all the Captains he has zero tolerance for nearly any Xeno race, the only reason he won't fire upon the Eldar in recent years is because of their involvement with resurrecting Roboute Guilliman. Many would assume from Vilhelm's personality that he'd risk going mad with rage and become something akin to the Khorne Berserkers, the only thing that Vilhelm hates more than Xenos is traitors to the Imperium.

Vilhelm will often take to the field of battle in his custom Cataphractii Terminator armour while accompanied by his Honour Guards, which he refers to as his "Executioners" (No relation to the Executioners Chapter). His weapons of choice alternate between his battlefield. His most notable are his Relic Claws bound to his Cataphractii suit, "Hell" and "Heaven". Both claws with build in bolters seen along the knuckles allowing for close ranged firefights.

His envy of the 1st Formation's Captains is because of his once dream of exploring the galaxy as a member, perhaps as their Captain. Early in his career as a 1st Formation Veteran he'd be sent to the Deathwatch then upon his return he'd be sent to the 2nd Formation, to never see the far reaches of the galaxy. This jealousy has only multiplied since the introduction and implementation of Primaris Marines, especially toward Lionel who hadn't truly earned the right to be a Captain.

Captain Logan
Easily described as the most charismatic Captain in the Chapter, he's also the youngest in the Chapter's history to reach this rank. Logan works personally with his command forces when the need for mass evacuations and reinforcing Guard Regiments. Standing alongside Generals on the battlefield, turning down offers from Lord Generals to view the battles from a distance.

Clad in heavily modified mark III power armour with a bright red gem embedded in the center of the chest and wielding a power fist and Combi-Plasma pistol. His place has always been standing with his allies and running through the battlefield with the aid of his Jump-pack in a calm manner avoiding enemy fire with ease and providing cover to their allies.

Keeping a crimson jewel on him as a sign of good fortune he would eventually get it embedded into his power armour once he was promoted to Captain of the 3rd Formation. His carefree nature was brought to the forefront as Logan had a nickname given to him by his brothers, "Immortal Logan" due to the crazy stunts he'd manage to pull off. One of which was the act of disabling an Ork Gargant alone, jumping out of its mouth as the entire thing exploded.

Captain Tristan
The clad in cold steel Captain of the 4th Formation has lived for millennia as a powerful Contemptor Dreadnought. Supported by the Formation's additional TechMarines and even the aid of Enginseers he has led them for nearly 5000 years.

As the millennia passed Captain Tristan became a cold and calculated leader that operated on the front line, as a living war machine and wall to protect his brothers. Ordering his commanders to lead their forces in the thick of battle Tristan rarely takes command himself. Becoming very close to the Magos Dominus "Iseult". She tends to him every moment she gets, viewing him as a prized possession and a great piece of work that she has maintained for longer than any other device she has held. Though she seems jealous as Tristan sometimes speaks of his angel, a woman who saved him from death.

Captain Gael
The strict and seasoned Captain of the 5th Formation is one of the oldest living Astartes in the Chapter, a master of stealth and performing hard hitting ambushes against enemy forces. It's believed Gael could very well have left his role to become the Captain of the 1st Formation centuries ago due to his skills but he doesn't believe anyone is yet capable of training the Chapter's Initiates as well as he and changing such would only hurt the Chapter. He was once a member of the Deathwatch during his service in the 1st Formation and wished to return to the 5th Formation as an Honour Guard.

With the dawn of the 42nd Millennium and the Primaris Marines the armour he wore would change. Despite not being a Primaris Marine, Deal, due to his size (as all within his Chapter) is capable of making use of the newly created Mark X: Phobos Armour more commonly used by Primaris Reivers. A dark hood attached to an equally dark cloak will typically cover his helmet.

His personal weapons are a pair of bolt pistols that resemble what would become the ones commonly used by the Primaris Reivers. His goes by the names "Ebony" and "Ivory". Both are scarred and damaged over a millennia of use but function as if they were new, capable of blowing a hole through a suit of power armour with ease. Though he uses them sparingly since they're obviously not the quietest weapons he uses. His other weapon is "Silence" a modified Sniper Rifle that makes use of the unique ammo types one would find in the service of the Deathwatch.

One of the most common strategies that Gael stresses is the concept of "Ghosting" which details that if the Formation deems an enemy force too vast to attack they will divide into multiple squads spanning several miles. All coordinated by Gael as he organizes assassinations on enemy commanders and missions to infiltrate enemy bases and sabotage their vehicles or even steal many of their weapons and supplies. These Ghosting strategies can last many months, even stretching years until aid from the rest of the Chapter comes.

Lord Curator Freke
Freke's true career started when he was promoted from the ranks of the Veterans squads of the 2nd Formation to became a Curator. A dedicated student of the Reclusiam he showed his true skills as a warrior and his dedication to the Chapter as a whole. A fierce warrior who knew what to say to his brothers to put their minds at ease and a raging fire in their hearts. His weapons of choice are his own Plasma pistol and a Crozius Arcanum donned in imagery of the Machine God that's kept clean by his Companions.

Freke suffered a psychic attack from a Tzeentch Daemon Sorcerer and it resulted in his mind being split into two different personalities. One where he retained his calm demeanor he was known for and another that developed when in the presence of Chaos in which he becomes a blood thirsty killer seeking for the death of all heretics.

Lord Hospitaller Vinland
The leader of the Apothecarion he has been tasked with monitoring the Chapter's Gene-seed and pursuing the education of the Chapter's Hospitallers, he has seen the recovery of many Battle Brothers and the implantation of many Gene-seeds along with the Magos Biologis. Keeping a service of Hospitallers with him at all times they may never see the battlefield as their task of ensuring the Chapter's future is a vital role, Vinland may leave one of his subordinates in command while he's away.

Despite the Chapter's admiration for the Mechanicus and their fealty to the Omnissiah in name it doesn't mean that they are so willing to replace limbs with mechanical ones on a whim like the Iron Hands Chapter or the Order of the Sacred Flame. Vinland is experienced with these procedures despite all this. Expertly capable of changing out ones missing limb with one made of metal within minutes.

Lord Forger Boldwin
Master of the Chapter's Armoury Boldwin only follows orders from the Chapter Master or the Adeptus Mechanicus of Roitheta, granted ancient and powerful weapons that make him death incarnate should he ever take to the field of battle. many years he'll spend upon The Ark maintaining vehicles and weapons, ensuring the machine spirits are tended to should the Chapter's Astartes be insufficient. Boldwin's TechMarines match those with any other Chapter in their knowledge but they pride themselves in their faith in the Machine God, lending their teachings to their battle Brothers as a result.

Should one of the Chapter's Formation uncover an STC he'd be made aware of it as soon as possible, wishing to be the one to personally hand it over to Fabricator-General Evienne. His armour is black as a result of hiding away deep in the Chapter's workshops, any battle scars across his armour would display as blood red from the original scheme that has been crusted over by smoke and torch marks. Both his appearance and machine-like personality have earned him the nickname "The rust scarred Golem".

Lord Seer Gwynn
Most Astartes in the Chapter may go their entire career without ever seeing this individual. Gwynn leads the Chapters Librarium in the training of all future Librarians and the recording of the Chapters entire history. He may spent months at a time locked away to his own personal work. Rarely appearing at council meetings, mostly communicating with the other members over a private Vox channel.

Gwynn is a powerful psyker that could match most within the Imperium, perhaps even some of the most powerful Grey Knights. He's one of the few within the Chapter who was quick to embrace the Ynnari as possible allies should the moment call for it, the Chapter may have not been violent towards the Eldar but they were still wary. Viewing the race's Psykers as a step in humanities' evolution that all should look forward to, even if those such as the Black Templars or Adeptus Sororitas share a burning hatred for the "witch".

Chapter Champion Nero
[INFORMATION WITHHELD BY ORDER OF THE HIGH LORDS OF TERRA]

Chapter Master Griffith
The original Chapter Master of the Omni Legion, hand picked from the 200 Astartes recovered by the Explorator fleet led by Myrddin and given their name and titles by Fabricator-General Evienne. It's unknown why he was chosen to lead his brothers, some think it was random but others think it was a character trait that the Fabricator-General could see that others couldn't. His first assignment was to seek out a recruitment world which he accomplished by seeking a world outside their own sub-sector as there were no worlds in the Roi sub-sector that would be efficient in this task.

He was known for being a minimalist in his early career, using a bolt pistol and a power sword he fought alongside his brothers on the field of battle in the same model of power armour. It would take decades for the Chapter to even attain the numbers to create a proper command squad for the Companies, it would then be over a century when the Armoury, Librarius, Reclusiam and Apothecarion came to exist within the newly constructed Fortress-Monastery on Tallon V.

Later Griffith would create the names of each Company and dub that each would contain numbers of 200 rather than the Codex Astartes listed 200. The brothers he had fought with for many years would become the 1st Formation and unwilling to separate these brothers the following Formations would be created for a specific purpose. He was criticized by many Chapter Masters from other Chapters for these actions, some even calling him a heretic for these choices he made but Griffith stood by them. He felt breaking apart these Astartes would weaken them and as a whole weaken the Chapter.

His close relationship with both Explorator Myrddin and Fabricator-General Evienne would be the catalyst that would lead the Chapter down to adapt several of the beliefs of the Adeptus Mechanicus. The concept of the Machine God seemed ridiculous to the Astartes but the belief that the Omnissiah as the Emperor who was the most powerful Psyker seemed more believable. It was then on that the Omni Legion saw all weapons, armour and even their ships as an extension of the Omnissiah's will.

The details of Griffith's death is [REDACTED]

Chapter Master Artorias
Artorias has been the Chapter Master of the Omni Legion for only 200 years, less than 100 years after his ascension to this ranks would mark the dawn of M42 and the return of Roboute Guilliman. Artorias has always had a fascination for the ages of old like many past Chapter Masters before him. Though his duties are to lead and encourage his brothers he often will take time in the day to visit the Vault upon the Ark should he be present. A powerful warrior and goodhearted Astarte he lost his eye at a young age during his day as an Initiate when he risked his life to save a young child, he'd never discover the ultimate fate of the child but it's what truly started his drive to protect the Imperium's people.

Chapter Master Artorias wears the oldest suit of power armour in the Chapter, passed down to new Chapter masters, created from parts of other suits that the Chapter masters had worn before achieving their role. His helm resembling that of ancient knights of Terra's history. His left pauldron displays the Chapter's emblem while his right is made of a thicker armour to act as a shield should the user need to protect their head. His left arm makes use of a power fist with an ancient and powerful stormbolter attached to it. Commonly wielded in his right hand when upon the battlefield Artorias will use one of the Chapter's Thunder Swords, a giant blade that most Astartes could only dream of wielding with one hand, but Artorias is one of those few who can. Capable of cutting even the largest Ork in half where their pieces would fall to be crushed by his reinforced boots.

Drystan the Shame
Very few records exist of this individual. Those that do speak about him as a high ranking member of the 5th Formation at one point, though these records only refer to him as [REDACTED] Drystan.

It has been suggested that this is a result of a mistake he made while in his Formation, the extent of his actions are difficult to determine. Though there is an inconsistency in Imperial records involving the 5th Formation, one in the year 754.M38 as the records themselves are in a similar way been [REDACTED].

Rise of the Dusk Born        (977.M41)
An attack upon the Penal World of "Lastonoe" challenged Lucan and the rest of his Formation while aiding an Imperial Guard regiment who also answered the call to aid the planet's forces. Confronted by the forces of the Chaos Warband of the "Dusk Born" and their legions of cultists who freed the prisoners who would attack the forces of the Imperium in masses. Terminators from the 1st Formation and the Warband Astartes were powerful titans of the battlefield that tore through cultists and guards alike as they attempted to slay one-another. Lucan personally fought against "Estoden the Unrelenting" while his Honour Guards fought his Terminators. Lucan was faster than Estoden but only because the traitor was slower because of his Terminator armour, Lucan couldn't get close without risking death. For hours the fight continued as the world burned and the situation only got worse with reports of daemonic incursions appearing around the world. Lucan was contacted by Artorias who ordered that he and his men fall back, as they did so the Imperial Guard covered their withdraw, Lucan could hear Estoden laughing and taunting him as the screams of Guards almost made him run back. Lucan never found out the fate of the traitors as he and his brothers left the planet by order of the Chapter Master and could only watch in silence as the Imperial Navy bombed the planet, wiping it clean of all life.

Chapter Colours
The armour of the Omni Legion primarily have a silver colour scheme with a red trim along the pauldrons, knees and the plating covering the stabilizing jets of their backpacks. Every Legionnaire has blue eyes on their helmets. Sergeants are to wear older models of helmets to help them stand out better among their brothers and display the Astarte's legacy. Captains aren't held to a specific code and are free to appear as they please as long as they display the Chapter's emblem and colours and their Formation's number.

The origins of their colour scheme comes from a choice made by the Chapter's first Chapter Master. Standing alongside Fabricator-General Evienne the discussion of the Chapter's colours were being spoken about. The first Chapter Master Griffith turned his attention to the robes that were wrapped around Evienne's mechanic frame. Looking at his silver armored hands he figured that nothing extravagant would be necessary. A similar red trim is all they would need. The silver armour they wore that was only slightly adorned was enough for the rest.

Chapter Badge
The Omni Legion's Chapter badge is a white coloured Cog Mechanicum icon - the ancient symbol used to represent the Adeptus Mechanicus and their religious faith, the Cult Mechanicus. This emblem takes the form of a halved human/cyborg skull, which represents the fusion of flesh with the holy machine. This icon is centered upon a white circlet centered on a field of red and surrounded on the left side by a half-cog symbol, which represents the Chapter's close ties with the Adeptus Mechanicus.