Even with the right settings, you must be actively connected to the game's audio channel.
Proximity Voice Chat is a defining feature of the Warzone 2.0 experience, but it frequently glitches out due to misconfigured channels or bugged toggles. If you can’t hear nearby enemies or they can’t hear you, follow these steps to restore the audio. Fix Warzone 2.0 Proximity Voice Chat Not Working
Go to Settings > Audio > Voice Chat and ensure "Proximity Chat" is toggled On . Even with the right settings, you must be