1) Go to your Combat arms root directory, then go to the "Game" folder.
2) Copy your "BGM" folder to a spot to back it up. Then you have two choices,
3) You can change the song that plays when u start CA, and the one that plays while in a room waiting. They have to be in .mp3 format.
4) Ok, get your song paste it in there, then copy the name of one you want. and replace it. There you go all done.
Niraj says 'go to youtube, get the song link, then go to vidtomp3.com dl it - and change the name and then put it in ur CA folder