The campaign manuals for Dark Heresy are amazing in providing insight in how your own personal campaigns should be going. READ THE FLUFF IN THE CORE RULE BOOK, AND READ CAMPAIGN BOOKS. Fate points are effectively the grace of the god empire himself helping the PCs
I like to give fate points to players who do something extremely awesome. If you want to be a nice GM just give your players a few extra fate points through out the campaign. And if a PC has to burn a fate point to stay alive whether from bad luck or stupidity, just remind them that this is the nature of the universe. The Fate points are there to help the PCs not die. Just remember, that it is OK for people to die in this universe, and that includes the PCs. This does not mean a bit of humor is out of place every once and awhile, but never go over board. They want everyone to have fun, relax, and maybe goof around a bit, but this is VERY uncannon. This is the main problem most new GMs have. REMEMBER THAT THE WORLD OF DARK HERESY IS VERY GRIM DARK AND EXTREMELY CRUEL. Tips and Tricks for GMing a good session of Dark Heresy: First off, I would like to say that I will try to keep the main post current as people post and suggest ideas for it.