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Katorga-12aa (gusta A. Edit)

The Katorga series were submarines produced by the SOMBRA Corporation. Only a handful survived the depths of Europa, and rumors says the 12 might even be the last one. They featured a low-consuming nuclear engine, high-end batteries and a drone, at the cost of the engine capabilities and a low weapon coverage in the bottom rear and in the front. Designed for security on board, they still had their flaws. Rumors says that they also feature secrets that have yet to be discovered. (edit for single)