I don't understand why you are quarreling with each other, guys ...
@ Zosimus : You can't say that u-boats' captains were incompetent, because you have not yourself commanded a German u-boat in WWII, so you have no real idea on how difficult it was (technology, navigation, psychology, self-control ....) Don't forget that SH3 is just a very unrealistic game with a very basic artificial intelligence, and you are playing it at home sitting on a confortable chair during your free time, without risking your own life, and the life of a whole crew ... If "game over", you can restart ... that was not the case in real life ...