Thanks for the advice guys
Another question.
7. When attacking convoys, what is the trick to dispatching the escort destroyers when they are zigzaging in a very unpredictable manner? In the screenshot below, as the convoy got within visual range, one of the destroyers was zigzaging almost directly towards where I was positioned, at least 6-7 nautical miles from the rest of the convoy. Is this normal? He did not spot me...I have been at periscope depth since I first made sound contact. What is the protocol for dealing with situations like this?