[quote=@Bright_Ops]
A little bit. 

But truthfully, rather then just reject it outright... I'm happy to sit down and try to make it work. Yes it might require some alterations, but the end result can be a better story.
[/quote]

Yeah I kinda scrapped this idea shortly after I came up with it, and started over completely from scratch. The end result was a Rimworld Crossover, more specifically the Rich Explorer Start, where a wealthy big game hunter from a high tech Glitterworld somehow winds up on Necromunda in the 41st millennium rather than the lawless Outer Rim planet he intended. Of course, he's not defenceless, and came prepared with a few months of food, some weapons, and several pieces of technology that will absolutely get him killed if anyone found out about them. He also did some training, and installed several gene mods before heading off. So he's also a lot more dangerous than a normal human, but not immune to bullets, and currently doesn't have any answers to psychic powers.

Its basically an ilsekai anime but in Warhammer 40k.