|The Union of Soviet Socialist Republics|
| Flag of the Soviet Union (World War II era)|
Flag of Soviet Union (Cold War Era)
|Games||Call of Duty: Black Ops|
Call of Duty: Black Ops III
|Engagements||World War II|
The Zombies map Ascension takes place in the Soviet Union (specifically at the Baikonur Cosmodrome), with Tank Dempsey, Nikolai Belinski, Takeo Masaki, and Edward Richtofen fighting Cold War era Soviet soldiers.
The Zombies map Gorod Krovi takes place in the Soviet Union as well, more specifically in Stalingrad. Tank Dempsey, Nikolai Belinski, Takeo Masaki, and Edward Richtofen (Origins timeline) return to retrieve the original Nikolai's soul and contain it in the Summoning Key.
- The U.S.S.R. logo can be seen on the Cosmic Silverback's left arm.