Vedius, Xepherial, Oskar, and possibly Thorn are pro-Imperium. The ork, the hereteck, and Azazel are pro-chaos. The only reason we're not all killing each other right now, is that Vedius has no idea wtf is going on and has to drive, Xeph is unconscious, Oskar is still trying to get inside, and Thorn is... well, in a precarious situation. 

In the Imperium's favor, the ork is injured and sapped of power, the hereteck is likewise cut from the warp (and albeit, crazy), and Azazel is preoccupied with his toys and is actually preserving one of the "good" guys.

I'd say Azazel and his thugs are currently running the show, which isn't a bad thing if we keep in mind the Eldar and Imperial ships are outside about to find us. Perhaps Vedius could ask us not to kill each other until we know we're not all about to be blown up or boarded or whatever by yet another enemy.  

I think Thorn and Azazel need to talk IC.