Call of Duty 4: Modern Warfare is a first person shooter videogame released in 2007. It is part of the Call of Duty series. It is available on Xbox 360, PC and Playstation 3. There is also a version on the Nintendo DS called Call of Duty: DS and another one for the Wii that was released on November 2009 called "Reflex Edition".
The sequel, Call of Duty: Modern Warfare 2, was released in 2009.

It has been awarded with the "Best game of the year", "Best action game" and "Best online game" prices on 2007. It was the most sold game around the world on 2007, with more than 7.000.000 sold games on 2008 and 13.000.000 on 2009.

Single player mode

Playable characters

During the single player's campaign, the player controls the following characters.

  Sargent Soap MacTavish. Member of the 22nd Regiment SAS. Is the most playable character.

  Sargent Paul Jackson. Belongs to the 1st Division Recon Force of Marines of the United States moved to Middle East. Is the second more playable character, whose role is controlled in five missions in the Act I. He dies in a nuclear explosion.

  Captain John Price. Player takes the control of Price when he was Lieutenant of the 22th Regiment  SAS, in a retrospective mission 15 years ago on Chernobyl, under orders of Captain McMillan.

Story 

Sargent John "Soap" MacTavish is a new soldier of the British army sent to the SAS, on the 22th regiment, who needs training. When he passes weapons training and the obstacle course, he must choose the difficulty level. When it is finished, the Prologue mission will start.

Weapons 

Pistols:

 HK USP .45
 M9
 M1911 .45
 Desert Eagle

Short machineguns:

 MP5
 Heckler & Koch MP5
 P90
 P90SD
 Mini-Uzi
 Skorpion

Assault Rifles:

 G36C
 M4A1
 M4A1 SOPMOD
 M4A1 with Grenadelauncher M203
 M16A4
 M16A4 with Grenadelauncher M203
 G3
 AK-47
 AK-47 with Grenade Launcher GP30
 AK-74U
 M14

Machine guns:

 M249 SAW
 M60 E4
 RPD

Sniper rifles:

 M40A3
 M21
 Dragunov
 R700
 Barrett .50

Shotguns:

 M1014
 W1200

Rocket launchers:

Non guided:
 RPG-7
 AT-4

Guided:
 FGM-148 Javelin
 FIM-92 Stinger

Explosives
 Grenades
 C-4
 Antipersonal mine Claymore.

Flashes
 Flash grenades
 Smoke grenades

Multiplayer Mode 

Multiplayer mode of Call Of Duty 4: Modern Warfare includes a class system. Five of them by default: Assault, 
Special Operations, Machine Gunner, Demolitions and Sniper, which have got weapons and 3 default upgrades; another five custom classes, whose weapons and upgrades can be modified when player gets rank number 5.

Game modes 
 Team Deathmatch [TDM]
Two teams fight each other as many times as they can before the time limit
 Domination [DOM]
Two teams fight for the control of 3 flags put strategically on the map. Possession of them increases some points to the team who have the flags.
 Sabotage [SAB]
Two teams fight for the possession of a bomb, which is moved by the players and have to be activated on the enemy objective. The other team can defuse that bomb in a limited time.
 Search and Destroy [S&D]
One of the two teams get the bomb, and have to go to the enemy objective and activate the bomb. The other team have to kill all the enemy members to win, but if the bomb explodes, or all team members die, they lose.
 Deatchmatch [DM]
The player is fighting alone, there are no teams. To win, you have to get the most of the kills.

Sources 

2007 video games
Call of Duty series
MacOS games
Windows games
PlayStation 3 games
Xbox 360 games