Call of Duty 4: Make All Weapons Have Laser Sight
You can add laser sight to all of the weapons in Call of Duty 4 for the PC with this cheat code.
1. Enable the console under options.
2. Press ~ and type seta thereisacow “1337″ in the console window then press Enter.
3. In the game, press ~ and type cg_LaserForceOn 1 then press Enter.