@Vance:
We were talking about 1 sub versus 1 sub.
Sure, I understand. But what if the defending sub is in a zone with a transport? Now you have a decision to make.
So to follow up on, and clarify, Gamerman01’s interesting hypothetical: if you have a SUB accompanying a TRANSPORT, and an ENEMY SUB attacks, is the defending sub locked in to combat w/o the option to submerge, because in submerging, the defending sub would leave the transport a sitting duck…?