As the World at War rooms are bb exclusive for the most part just forbid subs from ever entering, like Blitz.
If the general playerbase thinks World at War should remove the no submarine option, then recommend this thread. It is past the time for World At War to include submarine without discriminating.
War entails RISK, not Molly-Coddling surface ship players.
Yes I know that NavyField =/= Real Life and this game displays this situational fact everyday.
Recommend that the No Torp option be removed forever.
CV uses sonar so the argument "we can't see subs" or "we want to use escorts" does not stand. If you are afraid to sail out by yourself, then follow modern military protocol and stay near the carriers.
All that is required is minor behavioral modification and intelligence/strategy application on the part of bb drivers to remain near the sonar equipped surface vessels.