Perk-a-Cola

Perk-a-Colas are a feature that can be found in all Zombies maps, except for Dead Ops Arcade, Bus Depot, and the Call of Duty: World at War version of Nacht der Untoten. They also appear in Call of Duty Online's Cyborg Rising game mode. Each drink gives the player a perk to help them survive and fend off the zombie hordes. Some are based off of perks found in multiplayer (such as Juggernog and Speed Cola mirroring Juggernaut and Sleight of Hand respectively).

The machines spawn on fixed locations on each map, except for Shi No Numa, Shangri-La, Moon, Nuketown Zombies, Die Rise, Shadows of Evil, The Giant and Zetsubou No Shima, where the Perk-a-Cola machines will randomly spawn at a spawn point, with some exceptions. All Perk-a-Cola machines require that the power be turned on before they can be used, unless there is no power switch in the map. Exceptions to this are all maps from Black Ops onwards on solo containing Quick Revive; Mob of the Dead, where each Perk-a-Cola machine must be individually powered through Afterlife before it can be used; Origins, where each Perk-a-Cola machine must first be powered by its corresponding 115 Generator before it can be bought; and Shadows of Evil, where the system is the same as in Mob of the Dead, only activating perks individually through the Beast. Additionally, in TranZit, a Perk-a-Cola machine can be activated prior to turning on the power through use of a Turbine.

If a player is downed, they will lose all the perks they have purchased and will have to buy them again, unless they have obtained the Focusing Stone, completed the Richtofen's Grand Scheme, completed Maxis' or Richtofen's side of Mined Games, successfully uses Tombstone Soda or Who's Who, Aftertaste or Near Death Experience GobbleGum, or if a teammate as acquired Near Death Experience or Phoenix Up GobbleGums.

In When the Cold Breeze Blows Away, it will be located in every zombie locations, locations where have affecting from infection,B.O.Ws attack,and other locations that it can help every heroes or survivors to resist zombies,B.O.W.s,undead and types of zombies.