Using Mk.10s in anything besides an S-boat is not very accurate I have not read a book about WWII US Navy subs or by any skippers that ever mentions them being used in anything but S-boats. And in real life S-boats where in very poor shape they had been bulit between 1918-1925 or so and the mk.10s where just about as old of stock. But I am 99% sure that only S-boats used the mk.10s in real life in fact i dont think that there was enough mk.10s to go around they only had enough ofr the S-boats and i dont think any Mk.10s where bulit after the mid 30's there must have been some reason they did not use them as obviously if they where better than early mk.14s they would have so this should tell you something if they did not.
thankfully our navys' weapons today are much better and dont dud like they did in WWII or circle run and kill the vessel that launched it. The circle runner make me think of the Roman Legions' pila which where made so that when they either hit a body or the ground they bent out of shape so that a foe could not use them again.