The party system in Call of Duty: Ghosts allows you to play multiplayer matches with another friend or group of friends. Follow these steps to invite friends into a party and start a match as a party. This will also make you the Party Leader.
  1. Launch Call of Duty: Ghosts.
  2. Select Multiplayer.
  3. Select Play Online.
  4. Select Friends.
  5. Highlight players you wish to invite from either the Friends list or Recent Players list.
  6. Press Select, then select Invite to Party.
Once every player accepts the party invitation, launch a multiplayer match.
Parties will be matched in Lobbies that are most advantageous to the connection type of the Party Leader. As a result, some party members may experience lag depending on the distance between the party members and the Party Leader.