Modern Warfare 2 continues the gripping and heart-racing action as players face off against a new threat dedicated to bringing the world to the brink of collapse. An entirely new gameplay mode which supports 2-player co-operative play online that is unique from the single player story campaign. Special Ops pits players into a gauntlet of time-trial and objective-based missions. Rank-up as players unlock new Special Ops missions, each more difficult. Missions include highlights from the single player campaign, fan favorites from Call of Duty 4: Modern Warfare and all new, exclusive missions. Setting a new bar for online multiplayer, Modern Warfare 2 multiplayer delivers new capabilities, customization, gamestates and modes, including: Create-a-Class Evolved. Secondary Weapons - Machine Pistols, Shotguns, Handguns, Launchers. Riot Shields. Equipment - Throwing Knives, Blast Shield, Tactical Insertion. Perk Upgrades. Bling (Dual Attachments). Customizable Killstreaks - AC130, Sentry Gun, Predator Missile, Counter-UAV, Care Package.