Shock Infantry are the Russians' unique Modern Infantry of the Information Age, replacing the regular Assault Infantry. They are the final upgrade of the Russians' main infantry line. Like all previous units of the main infantry line, Shock Infantry are cheap, highly effective assault troops, best used against Heavy Infantry, Artillery Weapons and Support Units. When used in quantity, they can be somewhat effective against other things as well, like Armored Cars (modern Ranged Cavalry) and civilian structures. However, they are weak against Machine Guns and Tanks.