I may be wrong, but I thought every German sailor (Uboot) swore loyalty to the German Navy and that even though the Uboot arm of the German Navy were less adept to Hitler's political thinking, every single one of those men wore the Nazi uniform...or maybe I wasn't listening in my history classes.
All Nazi's in a Nazi sub?
Probably not, but in in principle, they fought for the motherland, helas, Nazi.
Are they going to raise it from the bottom?
DCL