A Sinyan marine was a member of the Sinya Defense Force Naval Marine Corps. He was captured by the forces of the Taung Confederacy during the Battle of Riesen III and was placed in a prison on the moon. Later, when Sinyan commando Delta arrived and opened the cell doors, this marine made his way to the armory and obtained a weapon. Delta arrived in the armory a moment later and ordered the marine to hold off the Taung guards in hangar bay while he searched for the controls to the hanger doors.