New Subs
 

Hi guys is there any mods that can give you new playable subs? perhaps from a later or earlier age of subs of different nations?

I'm not sure, but some of the non German boats available would include the U-A, built for Turkey, but kept for themselves, the Dutch O class, the HMS seal, the Italian UIT 24/25, or, if you really want to get creative, go for the French surcouf, or the Japanese I-400 class with three floatplanes stored knocked down in a top deck hangar.