This has been on my mind for a while now but is there anyone interested in playing in a 40k RP?

The next question I have is, would everyone prefer a system wide battle type deal with multifaction waring and diplomacy with a possible hidden threat working against all of the factions
(like Warhammer 40'000: A darkness unleashed)?
Or would it be prefered a small cohesive group working together (Like a group of Inquisition Acolytes) to defeat some unestimatable threat?

If there is interest either way, I would like some help comming up with the story or plot line for the thread seeing as my knowledge is limited to Tau and a small growing field of Imperium.