The Harpoon Turret was a turret used by the Marauders on some of their vehicles, particularly the Chomper and the Raider, around the time of the Second Martian Revolution. It shoots and reloads pretty fast and is capable of killing most EDF soldiers in one hit. A weapon very similar in design and concept, the Spiker, was employed in the Battle of Mariner Valley. The Spiker is a semi-automatic rifle.