English Assassin wrote:Warhammer 40,000 has long been established as a Hobbsean "war of all against all" (or rather "bellum omnium contra omnes", which sounds so much more appropriately grim) so no, it would be entirely contrary to the tone and style of the setting.
If you want super-friends teaming-up to fight evil aliens go and play a Star Trek game or some other generic space opera setting.
Not during when the game is based, but in warhammer 45,000, say.
Good point though.