The modern motorized battle tank debuted in the Terran World Wars of the 20th century and revolutionized warfare as much as BattleMechs revolutionized it in the 25th century. Battle tanks were never completely abandoned though, even in the golden days of the Star League, and militia units and poorer military units continued to use the basic tanks.
         Most battle tanks carry a single main gun in the turret and a pintel-mounted machine gun for use against infantry. They have four crewmenbers, commander, gunner, loader, and driver, though some tanks use an autoloader to replace the fourth crewmember. Larger tanks sometimes add another loader to move the larger shells. Standard battle tanks used a tracked locomotion, though many used wheeled or even hover chassis to improve mobility or reduce upkeep costs. Those are often faster than the tracked versions or carry extra anti-personnel weapons layered around the frame to make them harder to flank and kill.