- "The Berlin-based Russian mobster, Anton Volkov, was linked to Perseus. It's kill or capture."
- — Mission Description
Brick in the Wall is the fifth campaign mission of Call of Duty: Black Ops Cold War.
- Main article: Brick in the Wall/Transcript
- The newspaper a man is reading in the train will have a picture of Reagan from the CIA Safehouse E9 intro cutscene.
- While infiltrating Kraus’ apartment, if the player is seen by Kraus, they will not be able to tranquilize Kraus due to him having Plot Armor, causing the player to fail the mission.
- If the player kills Volkov, they will be able to carry his body.