order of the stick in warhammer 40k

[Gamerlord]

if the order of the stick and co (along with the villians) were somehow transported to the world of warhammer 40k how do you think they'd react when some leaders of the followings factions:
orks
tau
necron
choas
space marines
imperial gaurd
tyranids
sisters of battle
eldar
dark eldar

arrived and do you think any of them whould join or at least ally themsleves with any of said factions and if so which ones?