You better be a crack shot with your torpedoes if you using manual targeting, cos you only have 5, and no deck gun to mop up!!
Nice little boat though, slow, but nice. Would be good for raiding ports, shallow draft etc.
Dunno about the schnorkel, sorry. I would say most of the AA upgrades are out too, because you have no space for the wintergarten.:hmm:
Go to the ship upgrade screen and click the button in the bottom right/left corner, it shows you the tech tree, you can see what your boat can and cant get there.
