The DD's have the 'split personality' code programmed in them,

one minute they're nice and timid some will just sail right pass you while your submerge as if to say hi how ya doing great day isn't it!. Without any warning they go from nice sleepy timid DDS to psychotic nutbars its like you hit a nerve and really pi$$ed them off. Like i attacked a convoy last night not one dd found me its 1944 they were all at the other side of the convoy. Im over here guys! Kinda thing. Sunk 3 ships, nothing. DDs are still sailing round having their tea party. Hit the 4th ship and bang! look through the scope and i got 3 destroyers racing straight for me. Hassled me for what seem like hours before i finally got away. I got pounded. Psychos!