Call of Duty 4: Modern Warfare is a first-person shooter developed by Infinity Ward and published by Activision for Windows, Playstation 3, and Xbox 360. It will be the eighth installment in the Call of Duty video game series (including expansions), the first not to be set during World War II, and the first to be rated "M" for Mature by the ESRB. It was announced on April 25, 2007[5], and will be released on November 6, 2007 in North America and four days later on November 9, 2007 in Europe

Gameplay
Call of Duty 4: Modern Warfare will introduce a variety of game play styles into the single player campaign completely new to the Call of Duty series. The game moves away from the standard three country-specific campaign style, and allows the plot to play through more like a film style plot with interlaced story lines from the perspective of the player as a member of the US 1st Force Recon and a member of the British 22nd SAS Regiment. There is also a variety of cameo-style missions where you play as various other soldiers such as an AC-130 Spectre Gunship gunner, or as one part of a two man sniper team behind enemy lines in a flashback style mission.

Call of Duty 4: Modern Warfare will focus on the variation of modern warfare as an infantry soldier by allowing the player to control soldiers in a vast amount of different scenarios, straying away from the constant "at eleven" action of previous Call of Duty titles and allowing for both heavy intensity fire fights and slower paced drama styled intensity. The developer, Infinity Ward, has so far told about a handful of such levels including where the player will be the gunner of an AC-130 gunship and the pilot of a AH-1 Super Cobra helicopter providing air support.

The series� move to modern warfare has also introduced a variety of new modern weapons and technology to be introduced to the Call of Duty franchise. Such showcased weapons and attachments include M203 grenade launchers, IR laser pointers for use in conjunction with night vision goggles, silenced MP5SD submachine guns, and the FGM-148 Javelin portable anti-tank guided missile among many others.

Plot
A Russian nationalist by the name of Zakhaev is set on returning his homeland to the Soviet times. Zakhaev knows the United States would never allow this to happen, thus he funds a coup in the Middle East, organized by his ally Al-Asad, to draw attention away from Russia. The two men and their seconds-in-command gain the nickname The Four Horsemen. However, the British and US governments have been monitoring Zakhaev�s activities and discover his real intentions. During the War a Stolen Russian Nuclear weapon is launched at the Americans in the Middle East. The story is told from a perspective of a British 22nd Special Air Service Regiment operative in Russia and American 1st Force Recon in the Middle East.

The game also features a flashback mission set 15 years ago in the Chernobyl Zone of Alienation, which features a new incarnation of Captain Price from 22nd SAS Regiment, the only character to appear in both of the first two games of the Call of Duty series. He needs to assassinate Zakhaev, but his mission fails because his Captain gets wounded and he has to get him out of the Zone of Alienation. Whether this new Price will be confirmed to be a relative of the WWII era Price remains to be seen. It is also believed that the assasination attempt left Zakhaev with only one arm.

The game features the following as playable characters:

Lieutenant Price, 22nd SAS Regiment (15 years ago)
Sergeant John "Soap" MacTavish, 22nd SAS Regiment (present)
Sergeant Paul Jackson, 1st Battalion, 7th Marine Regiment (later Sergeant as part of 1st Force Recon Co., U.S.M.C.) (present)
Their names are seen in mission info which is seen in published gameplay footage of the game. Further characters are unknown.

The game features the following as unplayable characters:

Captain MacMillan, 22nd SAS Regiment (15 years ago)
Captain Price, 22nd SAS Regiment (serving as MacTavish�s commanding officer. Uses the same model as Call of Duty and Call of Duty 2 incarnation) (present)
Lieutenant Vasquez, 1st Force Recon Co., U.S.M.C. (Sgt. Paul Jackson�s Platoon Leader) (present)
Staff Sergeant Griggs, 1st Force Recon Co., U.S.M.C. (Support Gunner of Sgt. Paul Jackson�s Squad) (present)
Their names are seen in mission info which is seen in published gameplay footage of the game, or, in the case of Lt. Vasquez and SSgt. Griggs, in the PC Singleplayer Demo. Further characters are unknown.