Gameplay

Call of Duty 4: Modern Warfare is a first-person shooter similar to previous games in the Call of Duty series, but set in the present-day instead of World War II.

The game's move to modern warfare introduces new weapons and technology to the Call of Duty franchise, including the M203 grenade launcher, M4A1 carbine, the AN/PEQ-2 Target Pointer for use in conjunction with night vision goggles, the MP5SD submachine gun, and the FGM-148 Javelin portable anti-tank guided missile.[9] The player gains access to these over the course of the game, but may only carry up to two weapons in addition to grenades. Weapons from fallen foes can be picked up to replace weapons in a player's arsenal. Players also have additional abilities, including a grenade launcher attachment, night-vision goggles, and the ability to call in airstrikes.

The gameplay of Call of Duty 4 shares several features with previous iterations of the franchise. Once again, players fight alongside AI-controlled teammates. They help during the game's missions by providing cover fire, shooting down enemies, and clearing rooms for entry.

A character can be positioned in one of three stances: standing, kneeling, or prone; each affecting the character's rate of movement, accuracy, and stealth. Using cover helps the player avoid enemy fire or recover health after taking significant damage, as there are no armor or health powerups. When the character has taken damage, the edges of the screen glow red and the character's heartbeat increases. If the character stays out of fire, the character can recover. When the character is within the blast radius of a live grenade, a marker indicates the direction of the grenade, helping the player to either flee or toss it back to the enemy.

Campaign

Similar to previous games in the series, the player takes on the role of various characters during a single-player campaign. The characters' involvement in the plot occurs simultaneously and overlaps the events in the game. As such, the player's perspective can change from one character to another between missions.

Each mission features a series of objectives; the player is led to each objective with the HUD, which marks its direction and distance. Some objectives require that the player arrives at a checkpoint, while other objectives require the player to eliminate enemies in a specified location, stand their ground to defend an objective, or plant explosive charges on an enemy installation. The player is often accompanied by friendly troops, who cannot be issued orders. Laptop computers containing enemy intelligence appear throughout the campaign, and can be collected to unlock game bonuses.

After the credits roll, a special epilogue mission is unlocked for play, featuring an anonymous four-man squad of SAS troops retrieving a VIP from terrorists who have hijacked an airliner. The SAS rescue the VIP and escape before the plane is destroyed.

System Requirements

Minimum Recommended
Microsoft Windows
Operating System Windows XP with Service Pack 2 or Windows Vista
CPU Intel Pentium 4 2.4 GHz or AMD Athlon 64 2800+ processor 2.4 GHz dual-core
Memory 512 MB (768 MB for Vista) 1024 MB RAM (2048 MB for Vista)
Hard Drive Space 8 GB of free space
Graphics Hardware Nvidia GeForce 6600 or ATI Radeon 9800 Pro Nvidia GeForce 7800 or ATI Radeon X1800:[20]
Sound Hardware 100% DirectX 9.0c compliant card Sound Blaster X-Fi (Optimized for EAX ADVANCED HD 4.0/5.0 compatible cards)
Network Internet or LAN connection required for multiplayer