Aye, aye, aye. First off, your boat is a fine instrument of warfare, not a smash up derby dinghy. And I'm sure there'lll be a few dock workers upset at your rash actions too - if you even made it home.
First off, in general, WWII era u-boats - especially their shells - were pretty fragile, and collisions were something most good skippers tried to avoid
at all costs. Kurisho's little pictorial display I think makes the point in terms of how small u-boats were in comparison to their adversaries. If you are bobbing out in the middle of the mean Atlantic in January '40, one shouldn't be in a big hurry to nussle up to a 8000 ton steel whale.
LOL, actually the screenie of the collision is funny.:rotfl:"Look at these new heros, all full of wind and smoke." That IIB looks like the ant and the elephant, and the ant has rape on its mind.

Papa Dornitz won't give you a IX lest you forget not to crash the boats!!!
Your gunnery will improve as you gain experience, as well start promoting at least one crack gunner. Let 'em have a go on his own once and watch where he shoots. Ships have sweet spots, and in SH3, if you shoot at close range (real close like 300 metres) and focus your fire around engine rooms, you'll get a C3 and maybe a tanker with perhaps a quarter of your ammo.