What we need in the game is submarines.Also task groups should have a kind of sonar to detect them and only have them be able to be at just a couple feet below water.To have there scopes be able to see the enemy task forces.
Maybe as well have a sub for each squad and have sub ports for every couple dozen.The question for me is ed least.What kind of subs U-Boats or Japanese subs and so on?
This just doesn't change the the battles over water but almost everything you'll half to load Lancaster's with depth charges,Give destroyers torpedo toobs and depth charges.Have maybe fuel and oil tankers.
Have not just submarines include battle ships,small carriers,tankers and more.