Ardua reminds us about Warhammer 40K. Coming sometime to MMO, yes? In particular, he reminds us of the TV Tropes page for the game. Even if you know nothing about 40K, a category I share outside one RTS, this will give you a sense of the setting that went from “Warhammer in space” to “darker Warhammer in space” to “the World of Darkness is a bunch of fairies that fart rainbows” to “Cthulhu is a fairy who farts rainbows” and then one step beyond for the latest edition. You can still see the six WAR factions (one of which was eaten by bugs).