Storm Sentinels

The Storm Sentinels are a proud and noble Loyalist Successor Chapter created from the stoic and venerable gene-seed of the great Rogal Dorn during the 25th Founding. As proud inheritors of Dorn, like their genetic forebears, the Storm Sentinels are also specialists in siege warfare as well as ranged combat. Making their demesne within the borders of the Segmentum Tempestus, the Storm Sentinels often combat the Ork menace that often assails this volatile region, and often conduct xenocidal campaigns to halt the greenskin menace.

Chapter History
The Storm Sentinels Chapter was founded in the late 40th Millenium during the event known as the 25th Founding. As proud descendants of Rogal Dorn and the Imperial Fists, the members of the Chapter launch multiple efforts to defend the Imperium’s territories from any expected threats and expand the Imperium’s expanse throughout their sub-sector, often combatting the Ork threats in the Segmentum Tempestus. They specialise in ranged-combat and siege warfare, and they are known for their unorthodox tactics to make up for the situations not included in the Codex Astartes. Their members are trained to be uncanny marksmen, with the ability to hit enemies within the heaviest of cover. They travel the sub-sector on their Fortress-Monastery battle-barge Hammerfall to mobilize forces quickly when threats arise.

Their first record of service to the Imperium dates back to 873.M41, in the Chapter-wide expansion effort against Feral Ork Clans, gaining 4 planets: Iris Prime, Ignis VIII, Accellis, and Hyrus LX. However it is possible that the Chapter has served in defending the Imperium before this record as there have been reports of blue and grey Astartes defending against feral Ork invasions within the Segmentum Tempestus.

WAAAGH! Skullsnappa
These Ork purge reports reached to the shattered remains of Ork WAAAGH! Skullsnappa, causing its Warboss to gain confidence in his forces again and launch a WAAAGH! on the Storm Sentinels’ subsector with his remaining 1 Million Orks, first invading the Feral World Ignis VIII due to its open wastelands being advantageous to Orks in a battle. Small patrol fleets of the Imperial Navy reported to the Storm Sentinels of an Ork fleet attempting an invasion on Ignis VIII. Chapter Master Lucius Remus met the WAAAGH! on the ground with his full Chapter. Many Space Marines died in this conflict, and the main bulwark of the Chapter was surrounded by the Orks until the Chapter Master, accompanied by 2 squads of Vanguard Veterans and 3 squads of Assault Marines, baited the WAAAGH! into one of the planet’s mountain ranges. Stationed there were multiple devastator squads, which gunned down the remains of the WAAAGH! while the Chapter Master and his strike force fought Warboss Skullsnappa and his accompanying hordes with a new tactic called Lightning Fall; in which Space Marines with jump packs would fire at the target and charge it after firing, then they would retreat, and fire again. The Chapter wiped out the WAAAGH! However at the cost of heavy casualties, including 2 Assault squads that served in the Chapter Master’s strike force.

After this battle, Chapter Master Remus sent the 3rd Company to hunt down and kill the remainders of the Ork WAAAGH! Skullsnappa On the Agri-world Covius III before their numbers increase once again. On their way, the company came across a Space Hulk, and investigated it. It was an ancient Battle-Barge dating back to the Horus Heresy, converted into Tyranid Spawning grounds. On the Battle Barge was 2 suits of Cataphractii armor, which were then donned by the Captain and Lieutenant of the Chapter. The Company fought against the hordes aggressively on the battle barge, clearing it until no Xeno was left alive. The Company, suffering 70 casualties, continued with its mission to purge the remains of the WAAAGH! on the Agri-World of Covius III, and the Chapter suffered more losses to WAAAGH! Skullsnappa’s remaining forces, however all the Orks were purged. The planet was then re-established as a forward base for the Astra Militarum Regiments from Iris Prime.

The 3rd Company returned to the Fortress-Monastery Battle-barge of the Chapter, Spearhead, with only 13 Space Marines remaining from the brutal battles encountered by the Chapter. With the 3rd Company in shatters, the members of the Chapter recognised the Captain of the 3rd Company, Noctis Antellis, as unfit to lead. The Captain was found dead soon after in his quarters, with bruises, a punctured torso with 5 stab wounds, and a shattered ribcage. His death caused the seeds of distrust to sew itself within the Chapter, and Lieutenant Lysander Solaris took the Captain’s place. The Chapter Librarian was called to investigate the case, however he found no leads, other than someone on the ship was responsible for killing the Captain, and he traced the killer to a serf, empowered by Khorne.

It is during this time that Ork WAAAGH! Skullboila begins an invasion on Covius III as an act of Vengeance against the Storm Sentinels. It was discovered at this time that the 3rd Company raided the WAAAGH!’s camp while purging the remains of Skullsnappa’s WAAAGH! on the planet. This infuriated Skullboila, and he gained more members to take back the planet. The Irisian Regiments of the planet fended off against the WAAAGH! alongside the full force of the Storm Sentinels Chapter, and Knight House Chroma. Chapter Master Remus creates a specialised squad of Space Marines armed with Jump Packs, upgraded Storm Bolters that fire more bolts that pierce better, and Chainswords. These squads were named Lightning Squads, specialised in the Lightning Fall tactic, they were assigned to the 6th and 7th Companies as supplements in battles.

Accompanied by these squads, the Chapter Master, The Captains of the 2nd, 3rd, and 6th Companies, and Commisar Atreus Brellis led a spearhead on the weaker flanks of the WAAAGH!’s force to kill the leader, and to exterminate as many Orks as possible. The weakened 3rd Company was supplemented by the 6th Company, which supplied Devastator units. These Devastators were effective in supplementing the Lightning Fall tactic against the attack on these Ork hordes. The Chapter Master, his strike force, and the 2nd and 3rd Company Captains struck at the Ork head, charging Ork Warboss Skullboila. However, Skullboila was prepared for this assault, and used hidden forces to ambush the Chapter Master and his strike force. The force was surrounded, but the 3rd Company, led by its Captain, tore through the hordes with the 6th Company Devastators, forming a path for the rest of the Strike Force to escape while the Captains and Veterans attempted to kill the Warboss. However, the 6th Captain died, a squad of Veterans were killed, and Chapter Master Remus lost his arm, forcing the remainder of the force to retreat from the battle.

The Chapter and Regiments were forced to retreat from the planet. The 207th Irusian Regiment held the position in a Last Stand to allow the rest of the army to escape. The 207th was destroyed, and the members were labeled as heroes of the Imperium. The WAAAGH! was successful in taking over the planet, and they began their conquest to invade the subsector. The Chapter regrouped on the planet Ignis VIII with the Irisian Regiments to discuss the plans to fend off the Ork invasion. The 3rd Company Captain proposed his Company board Ork ships to weaken them, but Chapter Master Remus decided to fight the Orks with their mass force of Naval Ships instead, and to lead them to the Forge-World Sicadus, to restrict the Orks’ movements and to gain more reinforcements in the Skitarii of the planet and the Knights of House Chroma. A message was sent out to the Forge-World of an incoming Ork invasion, and they were called to prepare defences, both in space and on the ground.

A large-scale battle was fought above the Forge-World, with countless Ork Warships against the Imperium’s combined force of Naval ships from the Astra Militarum, the Adeptus Mechanicus, and from the Adeptus Astartes. Due to the Orks’ heavy losses, they deployed all their forces on the planet below, where they encountered Skitarii of the Forge-World Sicadus. Soon after, the Storm Sentinels and the Irisian Regiments arrived to deal a finishing blow to the Ork WAAAGH! The 3rd Captain of the Storm Sentinels, Lysander Solaris charged toward the Ork hordes, screaming to challenge Skullboila. Some of the members of the battle have made reports of seeing Captain Solaris die in the Ork hordes, however, after many hours, a loud scream was heard, and the Orks started fleeing, some being gunned down by Imperial forces. After the chaos settled, Captain Solaris was seen on a rock, holding the Warboss Skullboila’s head in victory. After this, the Imperium’s forces advanced, and purged the remaining Orks of Skullboila’s WAAAGH!

A Shadow Falls
During the recruitment of new Aspirants on Ignis VIII, Captain Solaris challenged Chapter Master Remus in the Chapter’s Annual Battle for Ascension in which a member of the Chapter challenges the Chapter Master for his rank. Solaris and Remus fought against each other in a gruesome match, both trading blows until Remus was knocked down by Solaris, who then raised his weapon, and slew Remus. The audience was shocked to see a Captain beat the Chapter Master, and to see one of their greatest Chapter Master’s corpse lying on the ground. Solaris was sent to the Chapter Chaplain for reconditioning and a mental examination.

Solaris revealed himself to the Chaplain, as someone who the Chaos God Khorne blessed with almost unrivalled power. He then slew the Chaplain, and begun his rule over the Chapter. He led the Chapter in constant Xeno purges within the Segmentum Tempestus, within 10 years, he was able to colonize 4 planets which were heavily defended by Xeno species.

During this campaign, the Chief Librarian called Inquisitor Mortaic Durm to investigate the Chapter Chaplain’s disappearance. Durn traced the Chaplain’s death to Chapter Master Lysander Solaris, and all his previous crimes, including the murder of Captain Noctis Antellis, and it was discovered 5 puncture wounds were from a stab of Cataphractii Lightning Claws. It was suspected that Solaris had fallen to worship of Khorne, it is possible this affected his leadership skills and strategic ability, causing heavy casualties upon his Company and Chapter. The reports during the war against WAAAGH! Skullboila could be true that Solaris died, however Khorne may have resurrected him for some unknown reason.

Chapter Civil War
By the time Solaris and the remainder of the Chapter returned from the planet Sicadus, the Inquisitor exposed the Chapter Master as a heretic to the Chapter. Solaris refused to surrender, and called his supporters to arms. The Chapter was divided into two, the Loyalist Storm Sentinels, led by 1st Company Captain Titurius Albac and the traitor forces were renamed to Sons of Khorne. For months, brother fought brother on the Fortress-monastery battle-barge, daemons were summoned onto the vessel, and all hope seemed lost. The Loyalists were cornered on the bridge of the battle-barge, and were forced to fight in a last stand against the traitors until the Chapter Champion spearheaded a final push against the hordes of traitors alongside the Chief Librarian and Inquisitor Durm. The spearhead failed, and the three were pushed back.

In an attempt to allow the members of the Chapter escape, Inquisitor Durm challenged Solaris to single combat, knowing Khorne’s honorable nature. Solaris accepted the challenge, and this gave enough of a distraction for the Chapter Champion, and the Loyalists of the 1st Company to push a final spearhead to the docks of the battle-barge. While the Storm Sentinels escape, Durm in slain to Solaris. The remaining members of the Chapter escape to the Militarum Outposts of Iris Prime through the drop pods and aircraft of the battle-barge. Before leaving, 1st Company Captain Castun Morvious commanded the Loyalist Storm Sentinels to destroy the remaining aircraft the Chapter couldn’t retrieve, so they would have air superiority for as long as they could.

The Chapter regrouped in the 217th Irisian Regiment’s base, where they discussed their next course of action. With half of the Chapter remaining Loyal to the Imperium and surviving the conflict on Spearhead, the Chapter had two options, take back the Fortress-Monastery Battle-barge, or destroy it. The members of the Chapter knew the cost of a Battle-barge was expensive, and they voted against destroying it, until one marine brought up the fact that by the time they would have retrieved it, it would have been tainted by Chaos, then the Chapter decided to destroy the battle-barge, and all traitors within it. The Captains knew they couldn’t beat the Sons of Khorne on the battle-barge itself, so with their air superiority, they sent small pilot strike forces to raid the Battle-barge.

The plan was to lure the Sons of Khorne onto the planet after the air raids, where the members of the Chapter would open fire with all their guns. This plan would fail, and instead of the Sons of Khorne deploying their forces on Sicadus, they escaped from the Chapter’s airforce.

From the surface of the planet, the members of the Chapter could not recover from their heavy losses on Spearhead easily before their enemies get the upper hand. They sent out a distress call for allies in the Imperium, and a Chapter called the Astral Warriors responded. They were acquainted with each other and began a hunt for the Spearhead. The Warp Drive had been damaged in the air raid, so the Spearhead couldn’t have gone into the Warp. Alongside the Astral Warriors, the hunt for the Spearhead began.

Hunt for the Spearhead
According to the Tech Adepts of Sicadus, the Spearhead could only travel within 3 parsecs for a year and would most likely orbit a planet within that range to be repaired from the damage, which would take about 2 years. With this information, the two Chapters split their forces into Strike Cruisers and Frigates. The Frigates created a blockade on the 3 parsec border while the Strike Cruisers ventured within Spearhead’s range.

During this time, the Chapter was left vulnerable to xenos invasions and was left unable to reinforce their ranks. The only usable Companies were the 6th and 7th, and due to high demand, these Companies were restructured to hold their own. Due to the Lightning Fall tactic’s success, the Companies were trained vigorously in it, even with the Lightning Squads being transferred to it. These Companies fought back heavily against any xeno threats and held the recruitment on Ignis VIII while the other companies were away. These Companies were renamed the Surrogate Companies after all these changes.

A squad of the 2nd Company of the Storm Sentinels and from the Astral Warriors in a strike cruiser were able to find Spearhead in orbit of a planet. All the alliance’s forces travelled to that location, and a brutal naval battle was fought in the planet’s orbit, however, due to the amassed forces, the Sons of Khorne retreated to the planet surface, where the allied Chapters deployed their ground forces. The alliance had the advantage in numbers, however they were ambushed by bloodletters, summoned by the traitors. Using Jump Packs, the Storm Sentinels and some Astral Warrior squads were able to escape being surrounded from the hordes of traitors and daemons. They fought the bloodletters in two flanks, and eventually, they paved a way for the trapped Space Marines to escape.

A brutal battle was fought on the planet, using the Lightning Fall tactic, the Storm Sentinels were able to prevent heavy losses, and the Astral Warriors’ biker squads were able to keep some enemies at bay with quick attacks. After hours of fighting, Traitor Solaris was alone, standing his ground against the allied Loyalists. It was with the combined might of the allied Captains, that Solaris was finally slain. The 2 Chapters signed a pact that strengthened their bond, throughout the decades, cultures and tactics were exchanged between the two Chapters.

Recent Events
During the attack on the Sons of Khorne, the Surrogate Companies had to fend off against an Ork invasion in the middle of the Chapter recruitment. The Aspirants, wishing to prove their dedication to the Imperium, charged the Orks, and assisted the members of the Chapter in the planet’s defense.

For centuries, the Storm sentinels fought back against multiple Tyranid, Ork, Tau and other Xeno invasions in the Segmentum Tempestus. When a threat was too large for the Chapter, they would ally with the Knight House Chroma or the Regiments of Iris Prime. On certain occasions, the 6th and 7th Chapters were sent out on Campaigns to retrieve planets and deal with Xeno threats, as they were the only reserve Companies which could hold their own without the support of other Companies. Eventually, the Companies were renamed Campaign Companies, as they were constantly sent on Campaigns outside of the Segmentum. The Chapter received a new ship, the Hammerfall, a Retribution-sized battleship with hangars and upgrades for the Chapter’s needs.

In the late 41st Millenium, the Chapter was called to action by the Astral Warriors. Their subsector, Asteria, was under attack by Necron and Chaos Guerrilla forces. Half of the Chapter was sent, including the Campaign Companies. The battle lasted until the early 42nd Millenium, and many of the allied Chapters serving in the subsector. Both naval and ground battles were fought in the conflict, and the Chapter spearheaded the assault against the invaders, gaining territory for the Imperium, eventually they were given a planet for their service, in which their newly founded Successor Chapter, the Imperial Paladins would occupy and use as a homeplanet.

Chapter Homeworld
The Storm Sentinels do not have a Chapter Homeworld, however they have vassal worlds within their subsector. These planets are Ignis VIII, Iris Prime, Accellis, and Hyrus LX. Each world has a purpose to provide the Chapter, usually supplying 1 or more resources to the Chapter's benefits.

Ignis VIII
Ignis VIII is a Feral-World filled with Wasteland and mountain regions. The warring tribes of the world fight for dominance and for the world's limited resources, such as water and metals. The world's limited resources cause the members of the world to use what little resources they can and be efficient as possible. These traits are what the Storm Sentinels seek in their Aspirants. During the Chapter's recruitment trials, the warring tribes of the world have a ceasefire, and unify to see the aspirants challenge each other and join the Chapter's Ranks.

Chapter Organisation
The Chapter is split into 10 Companies, as recommended by the Codex-Astartes. The 1st Company is where the Chapter's Veterans are assigned to. The 2nd to 4th Companies are Battle Companies, and are commonly used as the main bulwark of the Chapter's Forces. The 6th and 7th Companies are Campaign Companies, and are rigorously trained in the Chapter's Lightning Fall Tactic. They Contain the Chapter's specialised squads, and squads needed for a quick assault during a Campaign. The 8th and 9th Companies are both reserve Companies, and supply the Chapter with auxiliary squads to replace squads unable to serve the Chapter. the 10th Company is the Scout Company, and trains Neophytes until they are suitable enough to become Astartes. The Neophytes of the Chapter are commonly given sniper rifles to train their marksmanship and accuracy. Those Neophytes trained to be members of the Campaign Companies are instead given shotguns, to train their combat skill close to the enemy, and are often supplied with bikes to train in hit-and-run tactics.

Chapter Command
Chapter Master, Cadus Anteus Honor Guard Serfs and Servitors

Combat Doctrine
The members of the Chapter are trained in ranged combat and siege warfare, following in the footsteps of their Progenitor. Some members of the Chapter, especially Captains and Veterans are even proficient in the use of Jump Packs and hit-and-run tactics. The 6th and 7th Companies are trained vigorously in the Chapter’s specialised hit-and-run tactics, the Lightning Fall.

Lightning Fall
The Lightning Fall tactic was developed to break hordes and to combat armies which specialise in Close Combat. Astartes with Jump packs, most commonly Veterans Interceptor squads, or Campaign squads open fire at their enemies and charge them. After one round of close-combat attacks, the Astartes jump behind a line of squads with high-volume guns, such as aggressors or devastators. The heavy-support squads open fire, and after a round of fire, the Jump pack Astartes then open fire and charge again. Sometimes, there are multiple waves of Jump pack Astartes that charge the targets.

Notable Quotes
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By the Storm Sentinels
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