The Shock trooper is equipped with a portable Tesla coil, essentially a backpack generator with a lightning rod. He wears heavy armour isolating electricity and cannot be run over by vehicles. The troopers are used as special forces units and as pacification squads.
They are very effective against tanks and do heavy damage to infantry as well. However, their slow rate of fire, slow speed and high cost make them vulnerable to groups of rifle infantry. They are, however, more resistant than standard infantry, including grenadiers and flamethrowers. They are also unable to be crushed under tank treads.