when I ran into the two enemy subs, they had tried to fire torps at me , and they had this problem happen to them. ( single player "task force" of two enemy subs) would never have known but when I went to see if I had in fact sunk the first sub after chasing down the second using the external camera, I found 4 torps just hanging in the water that had been fired towards where I first made contact with the other subs. Fortune favors the fool I guess.