Okay so if the reason you say torpedoes weren’t used is because of lack of escorts than riddle me this. Why didn’t the allies respond with flurries of torpedoes whenever they detected an u-boat? They didn’t consider convoys to be low on the priority list and allocated rescources like mad in order to protect them. It should have been standard procedure to blast off ten mark 15’s ( in the case of a Fletcher class can) the moment they got a fix on the boat right? Wrong, that’s what depth charges And hedgehogs were for! And you keep talking about realism. Then why concern yourself with ship physics and other REALISM related fixes. Just leave the game in it’s same broke ass state and play it or don’t play it. Come on man. And you want to take it personal when I am bringing up what I consider to be a valid point. Gee sorry bro. Didn’t know you had such thin skin. I’ll make sure to tone it down a bit in order to protect your delicate sensibilities. You should give this link a try. This will give you an idea of just how crappy the overall hit rate was for the IJN and thier vaunted Long Lance.
http://www.navweaps.com/index_tech/tech-067.htm