Well this doesnt qualify as my most successful attack, but I thought I'd tell the story because it SHOULD HAVE BEEN my most successful attack. I picked up on a convoy early war. Stormy weather but they were getting closer to air coverage so I figured its now or never. I take a shot at the first ship I see through all the rain and sure enough its a destroyer. Next I spot a medium merchant and take it out. With one torp left I start looking through the rain for one more victim, and out of nowhere there is an escort heading my way. I take a moment to aim and LOS!. Direct hit and down she goes. Now here is where it gets interesting. That was my last torp, but I had full deck gun ammo. But you'd have to be crazy to take on a convoy on the surface, at least for any extended period of time. So I track the convoy for a while and the rain clears up but the seas are still rough. With my new visibility I take a look at what targets there are and I realize something. I killed the only escorts they had. There were at least 8 more ships, totally unprotected, early war so they didnt have their own deck guns. My eyes lit up like it was Christmas. I surface the boat only to find out that seas are too rough for the deck gun. I couldnt believe it. So I followed them for 2 days and then they got close enough to England for planes to start showing up and waters start to get shallow. I about screamed. If it werent for that damn weather I would have come close to clearing out that entire convoy myself. As it was I got two escorts and a medium merchant. That was the first and last time I was ever able to get a convoy unprotected, and I couldnt even do anything about it. I thought about ramming them to try to get some kills, but that would have just placed me at the bottom of the ocean with nothing. So frustrating!