MultiplayerGuid Ban CoD4
A guid ban on CoD4 means that you got banned by punkbuster for one reason or another. (This is on the PC version.) Mainly this happens when you cheat or hack online. Another name for this is a global punkbuster guid ban. Once this happens, you won't be able to play on any more servers with punkbuster. So, moral of the story. Don't hack.
Other reasons for a ban:
Punkbuster also checks your CDkey and if it's fake, it will ban your CoD4 guid.
