I don't think they should do WW2

Would it be sick? Most definitely!

However, you run into the sticky issue of the Holocaust. If you're going to be hunting down Nazis, it is kind of unavoidable.

There is the issue of how is it going to depict this accurately and respectively but in a way that isn't completely and utterly horrific so you could sell product. But then there are certain historical truths from WW2 that cause a lot of controversy/there are different versions of these events (the classic "we don't acknowledge this so it didn't happen" stuff).

It is still a VERY sensitive subject (and rightfully so). I like learning about WW2 and it seems like it would be a cool concept but it seems like it could also be an absolute train wreck. All historical periods have shitty elements to them, but I think genocide and crimes against humanity should be avoided (which is kind of unavoidable in WW2).