Call of Duty 4: Modern Warfare/Walkthrough

Welcome to the Call of Duty 4 walkthrough! The game has four difficulty levels with Veteran being the hardest. If you are playing the Xbox 360 version of the game then Veteran is where you'll also be awarded the majority of the 1000 achievement points this game offers. The difficulty level can be chosen at the end of the first mission and when you are trying a mission again. The difficulty level affects the time limits in some missions and how often enemies will hit you when they shoot. You are advised on which difficulty level to take by the game at the end of the first level.


 * Easy
 * Regular
 * Hardened
 * Veteran

This walkthrough goes through all 19 missions which are split up into 2 different special forces units: the SAS and the United States Marine Corps. To continue to the next mission, click the mission name in the footer.

For those who have haven't completed the campaigns before, each new mission will be unlocked once the previous one has been accomplished. This stops you from missing out or skipping missions.

This walkthrough will list some of the enemy intelligence pieces if the player goes near them, for the rest of the intelligence, see the previously linked page.