Example: The Operator Nova (shown above in Base Skin) can be unlocked only after completing the Modern Warfare II Violence and Timing  Campaign mission. A MWII player will not be able to access this Base Operator until the unlock prerequisite is completed. Then the Operator is unlocked for both games.

Fans can now obtain a completely new operator, Nova, in the week-early access for completing the Campaign mode in Modern Warfare 2. All players have to do is start the game, play all the missions, and complete them in the order that has been pre-arranged by the publishers.