Most fundamental of T2 mobile units, Ground Construction Units will allow commanders to enhance their economy with T2 Metal Extractors and Power Generators, fortify their bases with heavy T2 Point Defence Turrets, and also bombard their enemy from afar with T2 Medium Range Plasma Cannons or Artillery Turrets. Arm T2 Construction Vehicle is lightly built and only moderately armored, but is cheaper and faster to manufacture than other factions' equivalent units. Core T2 Construction Vehicle then is larger and more armored, while GoK's T2 Construction Hovercraft once again counts on its void shield instead of heavy armor or sturdy hull. All of these have double build speed compared to their T1 counterparts, which equals to what Commanders have.