Originally Posted by ViN86
Agreed. MW2 was a let down for competitive play.
Why would you have to change your MAC? That shouldn't be visible to anyone externally. And IP banning is pointless nowadays since practically no one has a static IP.
The Punksbusted master player index lists all players and ips they have joined servers from, league admins use this to cross reference ip's they have logged onto the league with. In the Clanbase league they use a 3rd party program called XAC (xray anti cheat) which will take random screenshots of the game when its running. XAC also records ip adresses and mac addresses (or operating system ID's) and uploads that to a server where the public can check for hacks.
Here's mine http://www.xraygaming.com/index.php?...&userid=127283
The 'Hardware: user has 1 machine' is the part where they take MAC address or OS ID.