The ct_fbi.zip file you have requested: Skins / Players / CS: Source FBI Player Skin - 781.91kb is not available. Perhaps try browsing all files for the game Counter-Strike: Source and upload any files you want to share or are missing. This is the only information we could locate:
This mod replaces the counter terrorist to blue FBI Agent skins. It features a FBI logo on the back, an eagle on the helmet, and an American flag arm patch.