I went through a period when i was getting blown out of the water by one of these gits every mission, then i decided to try a new tactic. The great playing dead trick really works. wait for that dreaded pinging then go silent and switch off engines and float just at the very limit of the perascope depth, then use the hydrophone and watch the enemy ship, then when he comes to your 0 degrees or 180 raise the scope and let him have it !!!! ive sunk 4 hunters this way and it's a wonderful feeling REVENGE