Originally Posted by Quillan

If you wish, you can even add extra crew members who stay in the damage control section. I don't recall precisely what skills contribute to efficiency in the damage control section (it's different for every ship location and I don't remember the numbers, but it's someplace here on the site), but you can take them from wherever you like. If you are submerged, deck watch is always a good place (since they have nothing else to do at that time), and the same goes for the deck/AA guns if you keep them manned constantly. Otherwise, taking them from off-duty watches is good. If you're at battle stations, I'd recommend you never pull out so many men from any one compartment that it lowers the total compartment efficiency below 100%; for most of them you have some leeway at battle stations, where everyone is on duty.