The 100pack.zip file you have requested: Skins / Skin Packs / 100% Reality Skin Pack - 5.46mb 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:
Tzunami has produced for us all a 100% Reality Skin Pack, with realistic looking uniforms and insignia. Pretty cool looking skins.