Nothing.... I just tried to make it look as good as I can, hoping somebody skillful come and give me the solution on how to implement it in the good way on the ships (to make it appear realistically on them), but it seems not to be doable. What is a damage texture ? Simply a hole texture with some details on it. When there is a torpedo impact the game simply paste the texture on the ship where the torpedo hits the hull.... Here you can see the problem :
This part of the skeleton is made to appear BELOW the hull.... And unfortunately it's not possible to model the whole skeleton, the same texture appears wherever the torpedo hits the ship....
That's the reason why this will probably stay a WIP.