Hmmm, now that you mention it, they went back to that with Necromunda. And almost, with Mordheim, there were some undead and skaven warbands and stuff, and loads and loads of various humans fighting amongst themselves.What I liked about Rogue Trader in its initial form, and it took a few decades for a forum user here, Gethsemane I think, to put it into words for me, was that humanity had basically won. There was no great existential threat. No chaos, Tyranids were a minor footnote, orks were a nuisance, no tau, no necrons, dark eldar kind of existed as a vague concept as eldar raiders. And life was still terrible, the galaxy was still a shit hole, because it was run by us.