Call of Duty 4: Modern Warfare Cheats - PlayStation 3

cheat description		size
WALKTHROUGH Feb. 07, 2011		31KB
SAVEGAME FOR US VERSION Aug. 31, 2010		113KB
SAVEGAME FOR EUROPEAN VERSION Feb. 10, 2010		112KB
SAVEGAME FOR US VERSION Oct. 08, 2009		279KB
SAVEGAME FOR EUROPEAN VERSION Sep. 30, 2008		284KB
SAVEGAME FOR US VERSION Jul. 16, 2008		249KB
SAVEGAME FOR EUROPEAN VERSION Jul. 16, 2008		172KB
SAVEGAME FOR EUROPEAN VERSION Jul. 15, 2008		116KB
SAVEGAME FOR EUROPEAN VERSION Dec. 08, 2007		279KB
SAVEGAME FOR US VERSION Nov. 21, 2007		114KB

After-Credit Sequences
Beat the game on any difficulty and let the credits run all the way through. When they finish, you'll start another mission. This mission takes place on a plane the resembles Air Force One, wherein you must fight your way through a hoard of baddies, save the V.I.P. and escape the plane in less than 2 minutes. Also, when you finish the game, you unlock the Arcade Mode.

Collect All Intel Pieces
Cheats are unlocked not by inserting passwords, but by acquiring the thirty Intel Pieces strewn throughout the game. The more of them you collect, the more cheats you can access. On the left are the number of Intel Pieces collected, and on the right are the cheats that are unlocked, with an explanation of what each does

"A Bad Year" Enemies explode into tires when shot - Collect 15 intel pieces
"Cluster Bombs" One frag grenade thrown equals five in explosion - Collect 10 intel pieces
"CoD Noir" Play the game in black and white - Collect 02 intel pieces
"Infinite Ammo" Just what it says - Collect 30 intel pieces
"Photo-Negative" Game colors become inverte - Collect 04 intel pieces
"Ragtime Warfare" The game feels like an old silent movie - Collect 08 intel pieces
"Slow-Mo Ability" Game plays at 40% normal speed - Collect 20 intel pieces
"Super Contrast" Game's contrast increases - Collect 06 intel pieces

Unlock Prestige Mode
To unlock Prestige Mode (multiplayer-only mode), reach 55 experience level. Instead of capping out at level fifty-five.

Unlock Arcade Mode
To unlock Arcade Mode, beat the game once through on any difficulty level. Arcade Mode itself is split into two options - Full Challenge or Level Chal.

Using Golden Weapons
Golden weapons are considered as special camo that you obtain when you fully complete their respective weapon challenges. You can use them by choosing that gold camo of the respective weapon. Note: The gold weapons are not enhanced, stronger, or more powerful in any way, it's simply Skin:

Golden M60 - Complete all LMG challenges.
Golden Ak-47 - Complete all Assault Rifle challenges.
Golden M1014 - Complete all Shotgun challenges.
Golden Dragonuv - Complete all Sniper challenges.
Golden Mini-Uzi - Complete all SMG challenges.
Golden Desert Eagle (Not Skin) - Reach Lvl 55.

Unlock Multiplayer Weapons
Assault Rifle (G3) - Rank 25
Assault Rifle (M4) - Rank 10
Assault Rifle (MP44) - Rank 52
Assault Rifle (G36C) - Rank 37
Assault Rifle (M14) - Rank 46
LMG (M60E4) - Rank 19
Pistol (Golden Desert Eagle) - Rank 55
Pistol (Desert Eagle) - Rank 43
Pistol (M1911) - Rank 16
Shotgun (M1014) - Rank 31
SMG (P90) - Rank 40
SMG (AK-74U) - Rank 28
SMG (Mini Uzi) - Rank 13
Sniper Rifle (M40) - Rank 04
Sniper Rifle (Barret) - Rank 49
Sniper Rifle (Dragunov) - Rank 22
Sniper Rifle (R700) - Rank 34

Unlock Multiplayer Perks
Get to the notified rank to unlock the corresponding perk:

Last Stand - Rank 8
UAV Jammer - Rank 11
Bomb Squad - Rank 14
Martyrdom - Rank 17
Sleight of Hand - Rank 20
Claymores - Rank 23
Double Tap - Rank 29
Bandolier - Rank 32
Overkill - Rank 38
3 Frag Grenades - Rank 41