How can I stop receiving chat or audio messages from a particular player?
If you do not want to see the chat messages from a player, press V to go to the Commanders Map and click on either the Team or the Players tab. Once there, look for the name of the player you do not want to receive messages from and press the check box next to their name under the Chat or Audio column. If the box does not have a check in it, you will no longer receive chat messages from them.
