This has me wondering if there is a separate RPG table top set in the 40k universe. All I know of is the war strategy game with the minis; but I love Owlcat's Rogue Trader (which is more of a D&D type RPG but you're one of those royalty merchant guys with a ship and an army at your disposal) and was thinking he'd probably be like the investigators in that. Which essentially amount to that copypasta of the libertarian police officer.

[–] Endymion_Mallorn@kbin.melroy.org 8 points 1 month ago

There are many games set in the 40K universe. Fantasy Flight produced the following:

Dark Heresy (with a 2e) - basically, Inquisitor but as a TTRPG. You play as members of an Inquisitor's retinue. You fight chaos mostly.
Rogue Trader - You're a Rogue Trader, and a tier up from the people in Dark Heresy.
Deathwatch - You play as Space Marines who are members of the Deathwatch. You mostly fight xenos, as is appropriate for the Deathwatch.
Only War - You're in an Imperial Guard Regiment. Good luck.
Black Crusade - You're a Chaos cultist. Good luck?

These are now discontinued, but they can be acquired.

There's also Cubicle 7's Wrath and Glory, which is the current game. I think it's trying to cover every Imperial faction at once.