Image by csullens via Flickr

Here goes the cheat codes for Call of Duty: World At War.

Cheat mode
Press ~ to display the console window. Type devmap mak to enable cheat mode. Then, enter one of the following codes at the console window to activate the corresponding cheat function.

Effect Code
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
God mode god
All weapons give all
Disable AI notarget
No clipping mode noclip
List maps mapname
Change maps devmap [map name]

Unlockables
Zombie mode
Successfully complete Campaign mode. This is a four-player Co-op mode against endless waves of Nazi zombies.

Weapons
Complete the indicated task to unlock the corresponding weapon bonuses.

Bolt Action Rifles
Springfield: Reach level 4.
Sniper Scope: Already available (increases accuracy and range).
Bayonet: Complete Marksman Challenge 1 (increases melee attack range).
Rifle Grenade: Complete Marksman Challenge 2 (grenade launcher attachment, replaces Perk 1 slot).
Arisaka: Reach level 4.
Sniper Scope: Complete Marksman Challenge 1 (increases accuracy and range).
Bayonet: Complete Marksman Challenge 2 (increases melee attack range).
Rifle Grenade: Complete Marksman Challenge 3 (grenade launcher attachment, replaces Perk 1 slot).
Mosin-Nagant: Reach level 21.
Kar98k: Reach level 41.
PTRS-41: Reach level 57.

Rifles
SVT-40: Reach level 4.
Flash Hider: Complete Marksman Challenge 1 (invisible on radar when firing, reduced muzzle flash, but shorter range).
Aperture Sight: Complete Marksman Challenge 2 (precision sight).
Telescopic Sight: Complete Marksman Challenge 3 (enhanced telescopic sight).
Gewehr 43: Reach level 7.
Suppressor: Complete Marksman Challenge 1 (invisible on radar when firing, reduced muzzle flash, but shorter range).
Aperture Sight: Complete Marksman Challenge 2 (precision sight).
Telescopic Sight: Complete Marksman Challenge 3 (enhanced telescopic sight).
Rifle Grenade: Complete Marksman Challenge 4 (grenade launcher attachment, replaces Perk 1 slot).
M1 Garand: Reach level 17.
STG-44: Reach level 37.
M1A1 Carbine Reach level 65.

Sub Machine Guns
Thompson: Reach level 4.
Suppressor: Complete Marksman Challenge 1 (invisible on radar when firing, reduced muzzle flash, but shorter range).
Aperture Sight: Complete Marksman Challenge 2 (precision sight).
Round Drum: Complete Marksman Challenge 3 (increased ammunition capacity).
MP40: Reach level 10
Suppressor: Complete Marksman Challenge 1 (invisible on radar when firing, reduced muzzle flash, but shorter range).
Aperture Sight: Complete Marksman Challenge 2 (precision sight).
Dual Magazine: Complete Marksman Challenge 3 (increased ammunition capacity).
Type 100: Reach level 25.
Ppsh: Reach level 41.

Shotguns
M1897 Trench Gun: Reach level 4.
Grip: Complete Marksman Challenge 1 (vertical foregrip to reduce recoil, replaces Perk slot 1).
Bayonet: Complete Marksman Challenge 2 (increases melee attack range).
Double Barreled Shotgun: Reach level 29.

Machine Guns
Type 99: Reach level 4.
Bipod: Complete Marksman Challenge 1 (reduces motion for more accuracy).
Bayonet: Complete Marksman Challenge 2 (increases melee attack range).
BAR: Reach level 4.
Bipod: Complete Marksman Challenge 1 (reduces motion for more accuracy).
DP-28: Reach level 13.
MG 42: Reach level 33.
FG 42: Reach level 45.
Browning M1919: Reach level 61.

Pistols
Colt M1911: Reach level 4.
Nambu: Reach level 4.
Walther P38: Reach level 4.
Tokrev TT-33: Reach level 21.
.357 Magnum: Reach level 49.

Primary Grenades
Frag: Reach level 4.
N 74 ST: Reach level 4.
Molotov Cocktail: Reach level 10

Special Grenades
Smoke: Reach level 4.
Tabun Gas: Reach level 4.
Signal Flare: Reach level 4.

Extra custom weapon slots
Reach the indicated prestige rank to unlock the corresponding extra custom weapon slot.

6: First prestige.
7: Second prestige.
8: Fourth prestige
9: Seventh prestige.
10: Tenth prestige.

Perks
Complete the indicated task to unlock the corresponding perk.

Perk Slot 1
Special Grenade x3: Reach level 4 (three special grenades, no smoke).
Satchel Charge x2: Reach level 4 (two remote detonation explosives).
M9A1 Bazooka x2: Reach level 4 (bazooka with two rockets).
Bomb Squad: Reach level 16.
Bouncing Betty x2: Reach level 24.
Bandolier: Reach level 40.
Primary Grenade x2: Reach level 44.
M2 Flamethrower: Reach level 65.

Perk Slot 2
Stopping Power: Reach level 4 (increased bullet damage).
Fireworks: Reach level 4 (higher explosive weapon damage).
Flak Jacket: Reach level 4 (reduce explosive damage).
Gas Mask: Reach level 4 (protect against Tabun Gas).
Juggernaut: Reach level 4 (increased health).
Camouflage: Reach level 12.
Sleight Of Hand: Reach level 28.
Shades: Reach level 32.
Double Tap: Reach level 36.
Overkill: Reach level 56.

Perk Slot 3
Deep Impact: Reach level 4 (deeper bullet penetration).
Extreme Conditioning: Reach level 4 (sprint for longer distances).
Steady Aim: Reach level 4 (increased hip fire accuracy).
Toss back: Reach level 6 (reset fuse of picked up grenades).
Second Chance: Reach level 9 (revive downed allies).
Martyrdom: Reach level 20.
Fireproof: Reach level 48.
Dead Silence: Reach level 52.
Iron Lungs: Reach level 60.
Reconnaissance: Reach level 64.

Vehicle Perks
Water Cooler: Reach level 4 (decreased turret overheat).
Greased Bearings: Reach level 4 (increased turret rotation speed).
Ordnance Training: Reach level 12.
Lead Foot: Reach level 28.
Coaxial Machine Gun: Reach level 40.