I feel this was a fairly large problem in many paradox games and the current solution of making AI suffer no naval attrition makes naval warfare boring and unrealistic. I'm not technically savvy about programming games so I don't even know exactly what the problem is so I can offer no ideas of what a better fix might be. Just that I hope you find a better fix or a real solution to the problem. With navies playing a much more important role in this game have paradox found a better solution?