Call of Duty: Modern Warfare 2 and Warzone are specifically targeted at mature audiences. Both games depict gunshot wounds, dismemberment, and exposed viscera. The in-game dialogue regularly includes profanity. Some levels include elements such as mutilated corpses and drug paraphernalia.

Players who receive voice chat warnings or in-game voice communication penalties can still play the game. However, per the Offensive Behavior section of the Call of Duty Security and Enforcement Policy, extreme or repeated offenses may lead to a permanent suspension from playing the game online.