Looks more like some kind of a sewage port than it does a missile hole, similar to the one on the starboard beam, except for the absence of discoloratioin.
Do you mean the hole fwd of the hit? One of two possibilities come to mind. Heat exchanger discharge for the engine as this appears the ship in post 51 is moving or Fire Main Discharge. The amount of discharge being shown I am purely guessing may be the main Diesel or an emergency generator heat exchanger.