The 24_ctu_steam_skin.zip file you have requested: Skins / Steam / Half-Life 2 Counter Terrorist Steam Skin - 170.85kb is not available. Perhaps try browsing all files for the game Half-Life 2 and upload any files you want to share or are missing. This is the only information we could locate:
Here's a Steam skin the author made that has a Counter-Terrorist theme to it, and was inspired by the show 24. Enjoy!