Map Pack 3 is a downloadable map pack for Call of Duty: World at War that was released on August 6. It was released on PC on September 18. Like the previous two map packs, it contains three multiplayer maps and one Zombies map. The map pack also includes ten achievements/trophies.
|Elevate Your Senses||Activate the Fly Trap.||25||Bronze|
|Locksmith||Open all the doors in the Map.||25||Bronze|
|40 Knives||Kill 40 Zombies using the Bowie Knife.||25||Bronze|
|Der Electrician||Link all the teleport pads before Round 7.||25||Bronze|
|Frequent Flyer||Use the Teleporter 8 times.||25||Bronze|
|Wacker Packer||Upgrade any weapon using the Pack-a-Punch Machine||25||Bronze|
|The Might of the Monkey||Use the Monkey Bomb||25||Bronze|
|Perkaholics Anonymous||Survive until Round 20 without buying a single perk.||25||Silver|
|Acquire Waffle Weapons||Obtain the Ray Gun, Wunderwaffe DG-2 and the Monkey Bomb at the same time in one game.||25||Silver|
|Pack Addict||Upgrade 5 weapons in the same game using the Pack-a-Punch Machine.||25||Silver|
On July 26, 2009, Treyarch released an "urgent title update" due to the fact that people were hacking Nazi Zombies and the Nazi Zombies leaderboards. This update showed the maps from Map Pack 3 in selection places such as split-screen and private matches. Weapons were also reskinned to give them a more gritty appearance, such as the PTRS-41 having more scratches and markings on it, the FG42's magazine having metallic stains, and some weapons gaining rust. Also, an anti-hacking device was installed and all hackers were suspended from Xbox Live/PSN.