At this moment, my carer is in October 1944 and i still surving to the enemy attacks. When im sailing im very close to the radar warnings, and i double my atention to the radar signals...because most of this situations means DD or a DD escorting another ship (sometimes escorting a Battleship or greater) or may be not...can be a Hunter-Killer group, anyaway when i detect any radar signals i order a normal dive to PD if the signal are closed (then its possible to see and classify the contact) if its a DD i dive with Silent Running to 70 mts and all aways giving to the enemy a low profile and speed at 1 knot. The secret its to detect first and order counter-measures...and Survive. At this time (1944) its more important "run away to fight another day" than tonnage!