Not only do these complement the cinematic missions you’ve come to expect, but they also provide you with numerous additional choices regarding your methods of mission completion. Open Combat Missions (OCMs) are an exciting innovation to the Call of Duty Campaign. Naturally, you’ll have the use of all the weapons, equipment, and tactics present in an action-packed Modern Warfare single-player experience, but for some of your engagements, it is completely up to you to decide on an appropriate course of action. In addition to the signature, cinematic Call of Duty missions, Modern Warfare III introduces Open Combat Missions, with even greater emphasis on player choice. Combat means making decisions using different Loadouts and planning different paths through every operation across an involved and thrilling Campaign.