A mobile phone number must be linked to your Steam Account to play Black Ops 6, Modern Warfare® III or Modern Warfare II.
*Use of CP is not available in all Call of Duty® games, is dependent on functionality and is subject to change. CP will be accessible once functionality for CP is enabled in that game and CP are made available. Call of Duty®: Black Ops 6, Call of Duty®: Modern Warfare® III, Call of Duty®: Modern Warfare® II, or Call of Duty®: Warzone™ must be launched and CP registered in-game before these CP will appear in other Call of Duty® games.
For more information, please visit www.callofduty.com.