As I mentioned in the other thread, this may well be a workable idea for adding sub's to AH.
Each country get's a few Convoy routs and convoys that sail along them.
The Convoy's are like TF's in that players can go to them like bases and man gun's and Launch PT's, and new type of Ship, a SC.
The "SC" is a sub chaser class, which is a smalish ship with depth charges, AA weapons and a Gun or two, which would have Sonar to use to hunt the Sub's.
Japanese CH 13 class:
16Knot's, 1 3inch, 3-25mm, and 2-13.2mm MG's depth charges and sonar.

This is just an example their are tons of different clases with various gun packages and they generaly ranger in the 15 to 20 some odd knot range.
The TF's would ply a AI controled rout althought it would vary somewhat and the ships would rebuild over a given amount of time.
The TF ship's, would have some gun positions on them as most freighter's, certainly Japanese one's were armed to a degree.


Japanese Merchent ships were by far and large very moden vessels at this time and they were required by law to built with hard points for gun positions should the nation go to war, so when WW2 hapened they were for the most part equiped with open mount guns similar to the 5 inch single on the CV's, althought the fit and calaiber of these weapons varied greatly, Light AA guns were also common.
So now we have the a Convoy and a means to protect it, from Sub's and Air threat's.
The Sub's could now be spawned from a base to interdict this shiping by going to various points along the "Shiping Lanes".
