Playing as Elizabeth, World, huge, 18 civs. I have a battleship/destroyer stack in the Baltic. One of Catherine's destroyers sinks my fresh battleship, the next destroyer sinks my destroyer. Another battleship gets sunk when a destroyer attacks her and then a transport (wtf?) finishes her off. Meanwhile in the Mediterranean, my destroyer attacks Caesar's ironclad. I'm favored to win at 99%, but I still come out of the battle with about 17/30 hp. All my boats have at minimum Combat I or Flanking I. Some also have Drill I or II. So why are my battleships getting sunk by destroyers? Why are my destroyers getting seriously hurt by ironclads? What am I doing wrong? What should I be doing.