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Humpback M20 / 31i

The WH4-L3 M20 "Humpback" series is a retrofitted former Humpback that has seen significant Coalition-supervised upgrades. A sturdier reactor complements a cleaner power grid and the atmosphere has been livelied up, making way for a much more organized and spacious submarine. Improved storage means it can serve as a transport submarine in a pinch, and also has more general storage space. It is slower than the older model Humpback, exchanging its speed for a sturdier arsenal - featuring a large mount on the top rearside and a depth charge system near its bottom mount. Safety overhauls have also lead to a reinforced airlock and a more powerful pumping system, leaving water less time before deflooding. Bot-friendly and functional. Also includes a brig that can double as clown room.