i agree with several posts here. Once even the most unsophisticated surface unit comes within range, they track you forever. I have been tracked by armed trawlers with no asdic and DD with asdic. GWX logic is perfect for them and no evasion is possible far as I can see. I have save game prior to all these encounters and have played GW a lot. Something needs adjustment in the GWX logic or soon as you contact a DD you are dead. Great graphics but not a very playable game. I ame an old Navy veteran and DDs did not do this well, especially in 1939.