Not sure if this was implemented yet but its also been indicated (although I can't provide the source off hand) that the Mk 16 could be fired from depths as deep as 200 ft. (vs. I believe 80 ft. for the Mk 14). Also I'm not sure if it was a rectangular track it would run or if it was just circling (which could probably be done quite easily with what's already in the game).
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