You don't need to sink it. Just take out the 16in batteries and it's a large ack barge. With Hitech adding a random 200yd offset when you click on the map in land mode, the shore battery has an advantage if the battle ship captain brings his ship in close enough so the 16in gunners can make visual corrections against the shore battery. A box of Lancs with 14 1000lb should be able to level bomb and get the 16in batteries in two passes if the pilot is good.
