If you aren't using a client like Cod4x, you may need to manually update PunkBuster to avoid being kicked from servers. ⚠️ A Note on Safety
Because the original CoD4 master servers were shut down years ago, community-led projects like CoD4x (a client patch that adds new features, anti-cheat, and dedicated server support) have become standard. Many PC players argue that since Activision no longer supports the original multiplayer browser effectively (the in-game server list is broken without third-party patches), downloading a "multiplayer only" repack is a form of game preservation. call of duty 4 modern warfare multiplayer only download pc