So, having played the demo, the first thing that struck me was - characters are going to violently disagree with each other. After all, in the 40K fiction, Chaos is shown to be endlessly betraying and warring with each other- why would your PC's be any different?
So, I'm hoping that their is a large section on advice and suggestions for handling this - what binds PC's together, what happens if one PC kills (or costs another a Fate Poiunt) another - how do they proceed when they are at each others throats? What happens to your game when it circles into endless betrayal?
SJE