Wondering Warzone Mic Not Working? Here you are! If a player's microphone is not working while playing Call of Duty: Warzone, there are a few steps they can take to troubleshoot the issue. First, players should check their microphone settings within the game and ensure that their microphone is selected as the default input device. If the issue persists, players can try updating their audio drivers, checking their microphone connection, or restarting their computer.