Hey, I usually use impact myself unless I have no chance of a 90 degree attack but i was reading at
http://www.comandosupremo.com/Submarines.html that Allied merchant ships recieved magnetic counter measures which were developed by the italians.
Did merchant ships really have an effective way of rendering magnetic pistols into duds by the end of 43? Or was it a case of only a few merchants actually having them. Also is it in the later part of the game?