One crashed Nazi spaceship? That’s nothing. In the Illuminatus! Trilogy, there is an entire SS division at the bottom of a lake who the bad guys try to resurrect as zombies to wreak havoc.
Saw one similar where SS zombies from a sunken ship chased people around an abandoned hotel. The head Nazi was the guy who always played Dr. Frankenstein in the cheap British horror movies. (Mental block; Christopher Lee’s buddy)