First of all: thanks for this awesome mod - nothing like going on a bomb run from the nimitz
I did see that the boat hangar not working in MP properly is a known issue. I put in my own "fancy" terminal that works just fine in MP. However, there seems to be an issue with the boat height.
Sometimes in local MP the boat will be slightly damaged. In dedicated MP this issue becomes worse and boats sometimes explode when launched. Could it be an issue with the submersible? I haven't tried it with other boats yet...