This guide will let you know how to mute teammates in Call of Duty Warzone & Modern Warfare.
You can mute one person individually, so you have to press the options button from your controller when you are in the game. And then, tap on the scoreboard, as shown in the image below.
In the scoreboard, you have to select the person’s name you want to mute and then press the X button to mute him. If you want to mute everyone continuously, you need to go back to the game, press the options button and tap on the options menu.
Next, you will need to tap on the audio settings on the top right and scroll down to the Voice chat section. Now you can mute the voice chat of everyone or mute everyone except the party, and there is another option where you can also mute everyone except friends, as shown in the image below.