How bout AI subs patrolling the cost at random incriments with a few guns then?
Guns? Sub's main weaponry is torps. It's main defense is hiding under water.
Besides, then HT would have to model asw platforms and weaponry. That's
a lot of time and effort to experiment on changing the scope of the game to
attract sub sim players.
Aces High is the best mp online WWII combat flight sim. Even with the current
ground and sea elements, I don't see the wisdom in attempting to change the
scope of the game to work on a mediocre naval element.