Call of Duty 4 Modern Warfare is open to almost any dedicated games, playing on Windows, XBox 360, or PlayStation 3. You can start as one of the playable characters: Lieutenant Price, Sergeant MacTavish or Sergeant Jackson.

You begin deeply involved in a plot that involves a stolen nuclear weapon, a coup and flashbacks to another mission 15 years ago in Chernobyl. As you play, you find that the past events continue to plague the present battles with simmering feuds, unsettle scores and old enemies returning in other forms.

Signing on for Call of Duty game in a multiplayer mode, you enter a system with five preset classes of Assault, Spec Ops, Light Machine Gunner, Demolitions, and Sniper class. The weapons and perks are already assigned to the users.

Another way to play is to let users create custom weapons loading and choose three perks for each infantryman. Once you kill enough opponents to earn the first level of Experience Points (XP), the user is promoted to Private (Level 4) and the class is unlocked.

The more you play to earn Experience Points, the sooner you rise in rank and new modes open to you. Reach 65XP and you get into the Prestige Mode. You have several choices for trading in rake to start again up to ten times.

Each time, you can save your custom classes for use in a multiplayer battle. Order Call of Duty 4: Modern Warfare today!