A mixed column of Terran Military Forces tanks moves forward through open terrain. The column is led by an M407A5 light tank armed with a turret mounted M42 105mm binary propellant cannon. Following closely are an M418A2 and M418A1 medium tanks. The M418 series are armed with the M47 150mm binary propellant cannon. The M407A5 is generally used in a heavy reconnaissance role, and the M418 series are designed to engage enemy armored forces on the battlefield.