Things You'll Need
Instructions
Launch your Xbox Live account, and connect to the Internet. If you and your friends do not already have a Gold Membership, you must first purchase one. Otherwise, you cannot form an Xbox Live Party.
Press the "Guide" button on your controller, and choose "Party."
Click "Start a Party," and choose "Invite Friends to Party."
Select the friends you want to invite. They must be online and have a Gold Membership for this to work. You can only select up to seven friends.
Click "Send Invite."
Confirm that everyone is in the party by greeting each friend by name and asking him to respond. Once everyone is together, debrief them on how to exploit the Cage Match glitch.
Select "Call of Duty 4" from your game list, and go to the lobby.
Press the "Guide" button again, and choose "Party" and "Invite Party to Game."
Choose to play a Search and Destroy game. As your Xbox is searching for a mission to join, all of your friends must leave the game.
Leave the game once all of your friends have left.
Choose Cage Match, and press the "Guide" button. This time you'll be able to select "Invite Friends to Game."