This Category lists the Challenges you can achieve in Call of Duty 4: Modern Warfare.
“For other uses, see Marksman. Marksman's Challenges are weapons challenges that unlock the Red...Marksman (Challenges)
“Boot Camp is a series of challenges featured in Call of Duty 4: Modern Warfare and Call of Duty...Boot Camp (Challenges)
“Humiliation is a category of challenges in Call of Duty's multiplayer setting. The requisite for...Humiliation
“For the online portal and stat-tracking service for Call of Duty, see Call of Duty ELITE...Elite (Challenges)
“Expert Challenges are weapons challenges in Call of Duty 4: Modern Warfare, Call of Duty: Modern...Expert (challenges)
“Challenges in the Operations tier in Call of Duty 4: Modern Warfare and Call of Duty: World at...Operations (challenges)