For getting back up to the bridge from inside the sub, or down by the deck gun... i abuse the Shift+U key.
Also, i found a quick way to get down to the deck gun without using the side ladder. Just sorta straffe into the ladder area while looking somewhat forward and dont look down. You will sort of "Jump" down.
yeah yeah.. i know i should walk up the ladders myself, but who has time for that?
