Hello again,
I asked a question earlier, and got some really helpful responses. You guys are more an expert than I am at this setting, so I figured I'd use these forums to pick some brains. I have no problems coming up with storylines, quests, etc., but I'm interested in figuring out some of the "blanks" in the setting to better pull my players into the feel of the WH40K universe.
Question 1: What does the warp look like? My players have only embarked on two FTL journeys in the course of the campaign, both times by necessity in chasing down a target they were after. During both of these journeys, I described metal plates sliding over the windows of the titanic ship as the vessel was about to enter the warp. Once inside, all external information is reported by sensor sweeps, and most importantly, through the Navigators. I reasoned that any passanger directly looking directly at warp space would immediately go insane. A cop out, sure, but it seems reasonable. How does the setting treat this?
Question 2: How separate is the Adeptus Mechanicus from the Adeptus Terra? I haven't had characters really pulled into an investigation of this sort, but it may arise in the future. Neither have I had a player character from this faction yet. It seems like this organization is a sister state to the Imperium in many ways, having a different religion, unfathomable practices, and only interacting where necessary. A symbiotic relationship between the two groups, with this uniquely being the only organization that is completely irreplaceable. Although they would likely allow Inquisitors to investigate within their ranks, there may be some oddities in the relationship with this group, perhaps requiring a specialized group of Acolytes.
Question 3: The tasks of the Inquisition seems to run parallel to what is required of the Adeptus Arbites. Do these organizations work together often? Is it likely the Arbitrators would call in the services of the Inquisitors? I imagine that there's enough corruption within the Arbitrators that they would be unnerved by the Inquisition sniffing around, but information they have gathered would seem to make their records and experiences potentially invaluable to a group of Acolytes on a case. To the same degree, this would likely be true of the records of local laws enacted by the planetary justice force (whatever form it takes), although I'm sure the records of the Arbites are far more sensitive, detailing government level persons. As it stands, I treat the Adeptus Arbites as being stand-offish, preferring to quietly go about their own business and reluctantly helping the Inquisitors when so ordered.
Question 4: The Grey Knights - are they part of the Inquisition, the Adeptus Astartes, or both? As I understand it now, this group is like the private hammer of the Ordo Malleus, have the same leeway as Inquisitors, but otherwise act independently, deciding themselves when and where they are needed (though typically alongside the Inquisitors). I would also assume that should they be required in an investigation of the PCs, the Adepts would be best to consider themselves already dead at the hands of some unmentionable horror.