The urban_ct_4.zip file you have requested: Skins / Players / CS: Source DarkElfa's Urban CT - 5.79mb 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:
Here is the 4th version of the Uban Camo CT by DarkElfa. Some of the more noticeable features is that the armor now posesses a slightly metallic sheen to it, and also improved camo and texture. This is definetly an improvement over the older version, and is worth a try.