[DavyJonesFootlocker]

No, the damage crew do rest I've seen them. Just make sure the button is turned off. And yes the AA and Deck Gun Crew do not change positions during diving. I usually do not change around crew members. That way they get experience in that particular station. But you can assign skills at base to make them more versatile. It's up to the player what they want to do. Even when injured over time they get healed by themselves (no, no medic on board). Except for pyschological incidents where a member may be shaken all through the patrol (where is Dr. Phil when you need him?). I handle this by replacing him back at base.