1. Select ur crossfire map.
2.Select the song u want as backgroundmusic
3.Simply press "start" REMARK: If this is the first time you mod ur music, tick "create a backup"
4.To restore a back-up, click "Check Back-ups" and check the back-ups you want to restore REMARK: If the back-ups automatically show up, don't press "Check for back-ups" becuse your back-ups will be 2x Listed.