we are all for historically correct, realism this and that but hold on...
air limit
fuel limit
bats limit
hull limit
torps limit
shells limit
deep limit
AND about food? no limit?... nice WWII subs had food replications like the Star Treky ships
have a mod guru thought about creating a mod which introduced a food limit?... so for a sub cannot be 6 to 12 months out cruising at 1kn max speed?
Cheers