I am trying to devise a small Handout for DMs. One of my players is trying to start a DH game and is having a hard time with the whole "GrimDark" thing. He is normally a proficient DM with the whole story thing... But 40k is a little trickier for him. Anyway, I will start with my Brainstormer path and maybe youse guys could help out with your own thoughts.
Fisrt, the Heart of the party... What is your Inquisitor? Ordos, radical or Puritan? This is an important, if not the most important question to ask, as this will steer the entire game.
Who will be the Enemy? and by this I mean the Real enemy behind the entire adventure/campaign. This should affect the game's tone as well as its goal. Chaos seeks to do x. Xenos try to do x.
What other good questions should be asked?