I'm not so sure that you can fight a fire below decks on own of those things without getting yourself killed. If the report that the fire has reached to fuel is correct, I just hope that every sailor gets the hell out of there before there is no way out.Fighting fires on those lower decks is an intimidating job; my sympathies go out to them. An old friend of mine was a fireman on a carrier, and it wasn't fun at all, even with no fires.
You can. They have special training for the Damage Control parties who do it.