BTS Weapons Progression Call of Duty: Modern Warfare 3 Trailer (PC, PS3, Xbox 360)

A behind the scenes look at weapon progression in this Call of Duty: Modern Warfare 3 trailer. Get More Call of Duty: Modern Warfare 3! Xbox 360: http://www.gamespot.com/xbox360/action/call-of-duty-modern-warfare-3/index.html PS3: http://www.gamespot.com/ps3/action/call-of-duty-modern-warfare-3/index.html PC: http://www.gamespot.com/pc/action/call-of-duty-modern-warfare-3/index.html Wii: http: ...