Gameplay
The latest release in arguably the most successful tactical first-person shooter franchise of all-time, gameplay in Modern Warfare 2 follows the same winning and time-tested structure of earlier games in the series. In the single player campaign players are aided by AI squad members as they take on a series of missions aimed at eliminating Ultranationalist forces. Each mission is built around a particular objective, with players utilizing some level of guidance from NPC characters, including "Soap" MacTavish, and aided in navigation by the game's heads up display (HUD). Along the way players will be able to utilize a wide variety of weaponry and and vehicles, as well as be able to customize weapons with gadgets attached to them.

Also, just as in previous games in the series, Modern Warfare 2 is heavily focused on multiplayer gameplay. The different multiplayer modes, available both in local play and online, contain plenty of customization options and revolve around different strategies ranging from the every man for himself action of "Free-for All," the classic team-based fun of "Capture the Flag and the tactical, team-oriented action of "Search and Destroy," just to name a few. Multiplayer modes also feature the "Perk" System that players may be familiar with from earlier in the franchise. Through this system players gain additional abilities, weapons and benefits as they gain experience in combat. This can be done by leveling up, but another important way way is through "kill streaks," the number of enemies eliminated in succession. These are available beginning with three kills and include the ability to call for supply drops, predator missile strikes, helicopter gunships and many more. Players have the ability to customize in advance which perks will be available at each number and can even gauge their progress towards each at the touch of a button. With an eye towards not making the game too hard for new players the game also features help to players experiencing "death streaks," multiple consecutive deaths in multiplayer matches.

Special Ops Co-op Mode
Along with a single player mode and multiple multiplayer modes, Modern Warfare 2 also features an unique third main play option, Special Ops mode. Available both online and in local play, Special Ops Mode is designed to provide a distinct time-based play option, featuring special scenarios not found in other modes in the game and lots of enemies to take on. This mode can be played either alone or with a friend, again either locally or online, with local co-op play including split-screen functionality.

Key Game Features

• Challenging Multiplayer Modes – Modern Warfare 2 will contain a wealth of multiplayer modes including: the every man for himself action of "Free-for All," the classic team-based fun of "Capture the Flag and the tactical, team-oriented action of "Search and Destroy."
• Improved AI Enemies – Improved artificial intelligence now allows enemies to attack from virtually any direction as players respawn into the game adding additional challenges.
• An All-new Call of Duty Adventure - Modern Warfare 2 features an all new Call of Duty storyline revolving around the continuing struggles against the Russian rebel group the Ultranationalists, who have found a new and more dangerous leader.
• The 'Special Ops' Optional Co-op Mode – "Special Ops" Mode allows two players, either alone or with a friend, to engage in unique mission play and features split-screen functionality.
• Diverse In-game Environments - Battlegrounds traversed in the game range from the lonely, snow-clad mountains of Kazakhstan, to dark tunnels in the Afghanistan and the crowded slums of Rio.
• Nonstop Action - Modern Warfare 2 contains no cutscenes, so players are always engaged in the action, no matter where they are in the game.
• New Breach Gameplay Mechanic - Players can now blaze their own paths through the game by "Breaching" formerly impregnable obstacles like Walls and doors with explosives.
• New Gadgets, Weapons and Weapons System Modern Warfare 2 contains many new and updated weapons, new weapons attachments, as well as a variant of the multiplayer weapons customization system from Call of Duty 4, now available in the single player campaign.
• New Perks and Increased Customization - Multiplayer modes feature new perks for leveling up, and for killstreaks and deathstreaks. Those awarded for streaks can customized in advance according to when they become available.