[TorpX]

Had battleships that were too easy to sink so I increased the critical depth, then found the large modern tanker (NOL_Nippon) and set that for the same depth as a BB - same draft, right? Except it promptly sank.

I wonder if the difference there is that the BB's have crews that can repair damage faster. It could be hard to tell if the ships are taking damage, if the crews are repairing it almost as fast as it occurs.