Ok, i'm on my fifth patrol so far in my wee IIA sub. My patrol square was AN16 which happens to be Scapa Flow, so I decided to sneak into port and see what was moored up ripe for the killing. However i wasn't counting on all those destroyers patroling the bloody place. So now that i'm finally in I only have 1 torpedo left, i'm out of flak (as if flak helps against Battleship :P ) and obviously no deck gun. I need to kill a Battleship (Revenge) with it, the SH3 Wiki says this is possible, and also lists its weakspots. It doesn't however, list what torpedo settings are best against Battleship. I assume impact is best, but what dept?
If anyone has ever 1 shotted a Battleship before please clue me in