If we start to worry about the accuracy of the uniforms in a Nazi zombie film, we should also start to worry about finally geeking out for good.
Anyway, I will definitely watch the sequel, as I found the first one to be quite good fun.
I especially liked the visually striking setting in that one; the snowy Norwegian wilderness was at the same time breathtakingly beautiful and - in this horror movie context - scary for its coldness, solitude and remoteness: No, help will not come.
(Especially, as our heroes find out, if you tell the emergeny services telephone operator: "Hello, 9-1-1? We've been attacked by what look like German zombies from the Second World War! And we set our cabin on fire by accident!" )
The zombies were actually pretty effective, too.