I'm really ticked at myself. I completed a career with 10 successful missions in my VIIB and was the 4th ranking ace when I was reassigned to a training command. I opted for a second tour. I was just in time for Dunkirk. I took my VIIB near the action. Twice, I snuck in and each time I sank a destroyer. I pressed my luck and snuck in for a third attack. I'd just launched my eel, when I was detected and sunk.
I got too cocky and pressed my luck too far. I forgot that the real objective of this game is survival!