What changed in Call of Duty® 4: Modern Warfare® (2007) in 2011

Kill streak rewards are now earned through points instead of kills, allowing players to earn points by capturing objectives and assisting teammates.

Modern Warfare 3 will support dedicated servers, including features like a server browser, voting, and RCON.

Introduction of Assault, Support, and Recon classes, each with distinct methods for unlocking gear and perks.

Efforts made to ensure perks are well balanced, avoiding overpowering abilities like the nuke from Modern Warfare 2.

Full integration with Steam, including friends list and achievements, along with the use of Valve's anti-cheat technology.

Expect SSAO rendering and anti-aliasing improvements for better visual quality.

Version 1.0 of the Star Wars mod, Galactic Warfare, has been released, featuring Rebels vs. Empire blaster fights across familiar terrains.