what we mean when we say, play online, not on gayarena is

when we open COD4MW, go to multiplayer, go to FIND SERVER

then change to Internet, and the list will come, we play on those servers.
But i dun think local servers got come out, so we must add the IP manually to favourites, then can edi..

Many ppl play on Garena coz the COD4 they have is pirated, and they using the same PIRATED KEY. this key is known worldwide to be pirated and thus, punkbuster automatically will kick u when u join.

Just need to be smart and get keygen and change the key, install PB, then can play online on DEDICATED servers with ping as low as 20 *well, for me!