Paolo Greco says he hates writing adventures, then goes all gonzo.
May I present:
Premise: Nazis are not necessary for this adventure. You can replace them with any other imperialist country hellbent on invasion and plunder and no respect whatsoever for natives like the British Empire, Imperial France or Japan, the Kingdom of Italy or the United States of America. If you want to keep the cool-sounding fake German names, pick Prussia. Or Switzerland.
I’m of the opinion that what happens in the typical Carcosa game or metaplot (snake-men performing eugenics and selective breeding on apes to have colour-coded victims to rape and sacrifice) is not worse than what the SS were up to in Europe.... (follow the title link for the entire adventure!)