Historically all but the largest of Japanese harbours were shallow.
The Yamato class was specifically designed to be wide rather then deep for this reason.
I have yet to find a harbour shallow enough that a yamato would even need to think twice about charging on in... which kind of sucks.
Its kind of not possible in the game, but docks that were in river deltas should be shallow at the edges with just a small deeper channel that the player actually has to find and follow. That kind of detail would be hard and be even more likely to mess with AI. Also the risk of running aground would be likely without risking a sonar ping or using the external camera.
Some extra anti-sub patrols and maybe even something to make destroyers nearby come back to the port to trap the sub in the harbour would work nice too.
|