Call of Duty 4: modern Warfare, The next-generation of combat shooter and one of the most anticipated games of 2007. Fight as a member of U.S forces and British spec ops in global hotspots to eliminate a well-armed, ruthless force of international separatists. Take the fight online where persistent stats unlock dozens of customizable weapons and abilities like calling in attack helicopters and air strikes from fighter jets to dominate your opponents.

As a player advances in rank, more options such as new classes and weapons become available. The multiplayer mode in Call of Duty 4: Modern Warfare includes a class system which has five preset classes with default weapon load outs and perks assigned to them, as well as allowing users to create five custom classes where the user can customize their weapon load out and three perks to assign to their soldier. The five default classes include Assault, Special Ops, Heavy Gunner, Demolitions, and Sniper. Only three of the default classes are available to a first time player; the rest are unlocked as the player gains more experience online and gains higher rank. Create-a-class can be unlocked at level 4; players can name and save their own custom classes for quick access in multiplayer matches.

Another introduction in Call of Duty 4: Modern Warfare multiplayer includes "Perks." Perks are special abilities which allow users to further customize their character to their personal play style. Players are limited to three multiplayer perks at a time which can be assigned via "Create a Class." Perks are unlocked as the player progresses in rank in online play. These perks are split into three groups. A player may only use one perk from each group at a time. Perks include the ability to carry more ammunition and explosives, increase the player's health, increase bullet damage, or a variety of others.
 

Perks

The Bomb Squad perk allows you to detect explosives planted in the map. This is useful if you are up against people who just love using bombs, and have C4 and Claymores hidden throughout the map. The Bomb Squad perk is unlocked at level 14 - Staff Sergeant I.

The C4 Explosives perk gives you two C4 explosives that you can detonate remotely using the fire button, or if you are using your primary weapon you can detonate them by double tapping the fire button.

The RPG-7 x2 perk gives you two ground-to-air missiles that are very useful for shooting down helicopter air strikes. It should also be noted that they can explode cars and other destructible objects on the map.

The Frag x3 perk gives you three Frag Grenades this perk is unlocked at level 41 - Colonel I.

The Bandolier perk gives you much more ammo for your clip the Bandolier perk is unlocked at level 32 - Captain I.

The Juggernaut perk you can take much more damage than usual, and still be standing.

Sleight of Hand helps you to reload weapons a lot faster, this is unlocked at Master Sergeant I (Lv20).

Stopping Power gives your weapon a large increase in damage.

The UAV Jammer perk helps to keep you off the radar, even when firing shots.

The Sonic Boom perk gives your explosions some added range and splash damage.

Double Tap increases the rate of fire for your weapon.

Overkill gives you the ability to carry two weapons at once.

Screenshots

Wanged!

Owned

Pwnzored

Ouch