This program changes all of your semi-auto guns into full auto guns in your shooter games. There are no new buttons required. Simply hold down the mouse button like you would with a normal auto gun, and it will shoot fully automatically.
FPSRapidfire is compatible with every PC shooter.
Because this program does not actually "hack" the game, it is impossible to get kicked by PunkBuster (PB), Steam, or any other antihack system, so you don't have to worry about a thing.