With regards to the 3rd edition rules: if your subs are involved in a naval battle with other naval units and, after a round of firing you declare that one or more of your subs have submerged, what happens if your remaining units are destroyed and your enemy remains in the battle zone? Do you have to withdraw then? If not, what are your options?
BONUS QUESTION
I found an official 2nd editon rules clarification from Milton Bradley which was very clear. Is there anything similar on the web for the 3rd edition rules? I would love something that gives specific examples of how each new rule change works!!!