Call of Duty: 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.

All PC versions of Call of Duty: Modern Warfare 2 will be powered by Steamworks, providing gamers with auto-updating, anti-cheat technology, Steam Achievements, and the recently introduced Steam Cloud.

Beginning this Thursday, April 8, gamers around the world can play Call of Duty: Modern Warfare 2 multiplayer free of charge during a special Free Weekend promotion on Steam. The definitive online experience, Modern Warfare 2 returns with a host of new perks and enhancements. Those who wish to enjoy every moment of the Modern Warfare 2 multiplayer Free Weekend may pre-load the game now. There is no obligation to participate.

Key Features :

• Epic Single Player Campaign
  • Epic single-player campaign picks up immediately following the thrilling events from Call of Duty 4: Modern Warfare.
• Special Ops Co-operative
  • An entirely new gameplay mode which supports 2-player co-operative play via online or split screen 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.
• Multiplayer Reinvented
  • Setting a new bar for online multiplayer, Modern Warfare 2 multiplayer delivers new enhancements including:
• Customizable Killstreaks
  • AC130
  • Sentry Gun
  • Predator Missile
  • Counter-UAV
  • Care Package
  • Accolades (Post match reports)
• Create-a-Class evolved
  • Secondary Weapons
  • Equipment - Machine Pistols - Throwing Knives - Shotguns - Blast Shield - Handguns - Tactical Insertion - Launchers
  • Perk Upgrades
  • Riot Shields
  • Bling (Dual attachments)