Hydronian Heavy Regiments

Hailing from the fortress world of Hydronia, the Hydronian heavy regiments are renown for their no-nonsense attitude and their general disdain for Imperial authority. The regiments the world produces are exclusively heavy. From the most basic frontline soldier to the most senior Officer, all have the finest carapace armour that the world can provide.

Hydronia
The world of Hydronia is a continental world similar to that of Cadia or old Terra but despite the size of the world is similar to the two worlds, the gravity is lower than normal. This has caused the residents to be taller than the average imperial citizen, around 6ft, making them very intimidating.

The world and surrounding sub-sector which the world is in control off is very resource rich making the world very rich in return. This has allowed them to produce high quality and elite regiments. These are the Hydronian heavy regiments. Carapace clad soldiers who march unfliching lyinto war. All regiments of Hydronia are given a full set of carapace armour which they are expected to keep, train and maintain for the rest of their stay within the regiments.

While it's unexpected to see or hear even tank regiments are provided with this armour. However, it has been modified in order for the crew to work with the armour in confined conditions. The armour is considered to be a symbol of both Imperial and Hydronian pride and commitment.

Due to being resource rich and in turn rich, this has allowed the regiments to be provided with high tech and advanced equipment. One such piece of equipment they use is the Ryza pattern Stormblade super heavy tank. At least 1 is provided to each super heavy regiment due to the fondness of plasma weapons with the regiments. This has provided an unexpected friendship with the forge world.

Another interesting note is the culture of the regiments. Hydronia has a very stirct class system in which no one can move unless granted by the planetary ruler. But this has largely been ignored by the regiments for better or worse. Around M34 for 100 years the regiments failed to gain a single victory against xenos and Chaos forces. This prompted an investigation of the command of the regiments. The investigation concluded that the officers from the noble houses were the cause of the failings by ignoring important information, numbers and more.

This caused the higher echelons of command to create a rule by which no one could use their family to jump ranks. By doing so would be grounds for execution. Unsurprisingly no one in the noble houses like this, but the Planetary lord had the last say. She agreed with her command and signed the rule causing many families to leave Hydronia. This allowed some familes to gain more prestige on the world and the 'tratior familes' to become little more than evil villains in children's stories.

History
Before joining the Imperium Hydronia had its own small empire of around 100 worlds. Around this time, it is known that Hydronia made extensive use of heavy armour against xenos and local human civilisations. They also descovered a world which had a large ogyn population which they used as heavy shock troops. It should be noted that these ogyns could have been grey ogyns. With the use of the ab humans and their technonogy, Hydronia managed to conquer 100 worlds before coming into conflict with the Imperium.

On the world of Fire ridge the Hyronian forces fought against the Imperial army before members of the Wolrd eaters legion came and turned the battle in their favor. This forced Hydronia to surrender and join the imperium.