Early 1940. Hit a convoy on the east coast of England. 8 merchants and 2 destroyers. I nailed the destroyers first, then worked my way up the column until I was out of torpedoes and shells. In the end, one tramp steamer got away. I shot all the cargo off his deck with the AA gun first, though.
Depth under keel was like 9m. So run away was clearly not an option for the escorts.
Steve