Costellia

Costellia is an inhospitable and arid Imperial death world and home to the famous 8th Costellian Light Infantry Regiment, nicknamed the "Raiders" for their appearance and tactics. Forged on the harsh desert world of their birth, the troopers of the 8th Costellian hail from the warrior caste of Costellia. Despite their smaller size, they have forged a well-deserved reputation for their marksmanship and raiding tactics.

Costellia
The homeworld of the 8th Costellian, Costellia, is classified as a Death World, and this is evident after a single step into it's sprawling, planet-wide desert. Once a tropical world rich with resources sought out by the nearby Forge Worlds, Costellia's environment was utterly destroyed during some time after the War of the Beast. It's once tropical landscape was blasted into scorching deserts, and it's population was reduced to a fraction of it's original size. Left among the ruins, the survivors forged a new life, forced to adapt to the radioactive wastes and few habitable spots.

In this land the new society of Costellia rose, one which worshipped the God-Emperor as the one who saved them from the wastes, bringing them to his side once they had served him as long as he required. Resourceful and quick-thinking as they scour the wastes, Costellia only rewards those tough enough to endure it's hardships, and smart enough to have faith in the God-Emperor and each other.

Castes
The Costellians, despite being made up of several different tribes across the planet, are close with one another, practicing the ways of brotherhood throughout the wasteland, as they have realised they need each other, as well as the God-Emperor's light, to survive. This, ironically, has caused them to be split into five castes so that the community can thrive. Each caste has it's own job in the community, and all are valued equally.

The Warrior Caste is trained for the Imperium, as well as to hunt and defend the tribe from bandits; the Scavenger Caste searches the wastes for anything they think will help improve the tribe; the Feeder Caste grows any plants that survive in the wastes, as well as cook for the tribe; and the Sultan Caste deal with the politics between tribes. The Priest Caste makes sure the population maintains their worship of the God-Emperor, and keeps the spirits up in the harsh wastes