The allies_sg2.zip file you have requested: Skins / Allies / Stargate - Desert & Forest Camouflage - 3.77mb is not available. Perhaps try browsing all files for the game Return To Castle Wolfenstein and upload any files you want to share or are missing. This is the only information we could locate:
This zip includes two sets of Allied skins. One with Desert Camouflage, one with Forest Camouflage. Each set includes individual skins for each class.