Gelgoog variants also appeared to fill specific mission roles, and one variant was the MS-14F Gelgoog Marine. Built exclusively for Zeon's marine troops, the Gelgoog Marine featured improved thrusters, speed and maneuverability, as well as external propellant tanks to increase its range while offsetting the extra fuel used by its more powerful thrusters. The twin beam sword of the original Gelgoog was replaced with two standard beam sabers, and a 110mm machine cannon was mounted on each forearm.