Remember to build CSS from my childhood (Counter-Strike: Source)

10 years ago I played in an Assembly in which the CSS in the main menu, played a song the Exies - F. S. O. S.
Spoilered was a custom character models and weapons (the gates were on the right side that was extremely important for 10 year old me). I really want to find this Assembly, nostalgia, live breaks, and I can not find. I hope for your help and good memory.