Hansolo,
I know it's very picky but the deck gun crew who wears helmets are a bit incorrect because of the emblem. The red white and black is for Heer.
It should be this emblem
https://germanhelmetvault.com/kriegsmarine-decals/ . I don't know if it would be very hard to make, maybe i will try to change it myself.
https://germanhelmetvault.com/kriegsmarine-decals/
Photo for context.