Things You'll Need
Instructions
Turn on your Xbox 360, then navigate to the "My Xbox" menu.
Select the profile that is associated with your Xbox Live gold account, then press the "A" button to sign into Xbox Live.
Insert the "Call of Duty 3" game disc, which will prompt the game to start.
Connect your microphone to your controller by plugging it into the jack on the bottom of the controller.
Select the "Multiplayer" option from the main menu, then specify the type of game that you wish to play. Once you are in a game lobby, you will be able to hear other players speak and they will be able to hear you speak as well.