The ZPU-4 is an anti-aircraft gun in Call of Duty 4: Modern Warfare, Call of Duty: Modern Warfare 2, Call of Duty: Black Ops, Call of Duty: Black Ops II, Call of Duty: Ghosts and Call of Duty: Black Ops 4.
Call of Duty 4: Modern Warfare Edit
The ZPU is used by OpFor forces in the Middle East during the invasion of a small Middle Eastern nation under the control of Al-Asad. During the mission "The Bog", Paul Jackson is tasked with destroying a ZPU in order to allow AH-1 Cobra helicopters to come in and secure the area to rescue a stranded tank, War Pig.
It is most likely that tens of other ZPUs are firing throughout the mission "The Bog" and multiplayer map of the same name. They usually fill the night, firing at the skies above, though the player does not see much aircraft going about. In the mission "Shock and Awe", ZPUs will fire at Jackson while he is using the Mk 19.
Call of Duty: Modern Warfare 2Edit
The ZPU appears in the level "Exodus", where it is being used by Russian paratroopers to destroy American air support. It is also found on the multiplayer map Afghan and on the roofs of buildings on the multiplayer map Strike.
A model of the ZPU can be found in a glass display case in the "Museum" level.
Call of Duty: Black OpsEdit
In Call of Duty: Black Ops it appears in missions "Operation 40", "The Defector", "Payback", "Victor Charlie" and "Redemption". During Operation 40, Mason's team gets pinned down during their escape plane taxiing and Mason jumps from the plane to control the ZPU and destroy enemy vehicles. It can also be seen in the maps Havana and Jungle.
Call of Duty: Black Ops IIEdit
The ZPU makes an appearance in the level "Suffer With Me". A ZPU can be found on the roof of a red building, Northwest of the courtyard with a ruined structure in the centre, and can be taken down to complete a challenge.
Call of Duty: GhostsEdit
Call of Duty: Black Ops 4Edit
An unusable ZPU-4 is seen in the multiplayer map Nuketown.