Also, on a side note, I don't think "neger" is very fitting. First of all, it sound't rather bad, second, why would the nazi-regime Germans name one of their weapons after an, in their oppinion, inferior race?
Maybe I've just had a rather stressful day, but there are so many problems with this that I'm just too plumb tired to even think of where to begin, that your first thought was that someone was trying to sneakily (not subtlety) offend people in the worst way short of graphic depiction, prose, illustrative or otherwise. It deeply offends me, either in someone trying to actually do that, or (in this specific case) someone implying that another member is trying to do that, because it reflects extremely poorly on Shipbucket.
And as for everything else, yes, there are some flaws inherent in how this AU is presented (I hope I didn't sound too much like a dick with that). Maybe I'll get to those later.