CALL OF DUTY 4: MODERN WARFARE UNLOCKABLES
Cheats
Cheats are unlocked by collecting enemy intel, which look like laptop computers, that are hidden throughout the campaign. Note: Using cheats disables Achievements.
A Bad Year:
When you kill enemies, they explode into a bunch of old tires!
Cluster Bombs:
After one of your frag grenades explodes, four more explode in a cross-shape pattern.
CoD Noir:
Simply turns all gameplay turns black and white, giving the game a classic war movie feel.
Infinite Ammo:
Wepaons have unlimited ammo, you don't even need to reload! Doesn't work with single-shot weapons like C4 and Claymores.
Photo-Negative:
Inverses all of the colors of the game.
Ragtime Warfare:
Gameplay goes black-and-white, dust and scratches fill the screen, it plays at 2x speed, and the music becomes piano music.
Slow-Mo Ability:
By using the melee button, you can change the game to slow-mo and play at half-speed.
Super Contrast:
Dramatically increases the game's contrast, making the darks much darker and the lights much lighter.
Golden Weapons
Golden weapons are a special camo that you get when you fully Complete their respective weapon challenges.You can access them by choosing the camo of the respective weapon.The weapons don't get a boost or anything alike,it's purely cosmetic.