Technology & Combat Characteristics
The GM Marine Type is based on the [[RGM-79C［G］ GM Ground Type-C|RGM-79C[G] GM Ground Type-C]] and modified for operations in marine environment. While it is a different machine from the RAG-79 Aqua GM, another GM-type unit for use in marine environment, the two does share similar shape and equipment. The GM Marine Type is equipped with hydrojets on its shoulders, knees and backpack to propel itself underwater. To adapt to underwater combat, it uses a handheld needle gun that fires solid projectiles.
History
In August UC 0080, multiple RGM-79[M] GM Marine Types were dispatched by the assault carrier Spartan for a patrol mission near Antarctica. They were then ambushed by several MSM-07 Z'Goks piloted by Zeon remnants and suffered heavy losses, with many units crushed by sinking icebergs.