The s_skins1.zip file you have requested: Skins / Miscellaneous / CODUO Vehicle Skins by AndrewT - 4.15mb is not available. Perhaps try browsing all files for the game Call of Duty and upload any files you want to share or are missing. This is the only information we could locate:
Here is a Skin Pack for Call of Duty and United Offensive, which changes nearly all the tank skins and also the Flak skin to camo pattern! Check the screenshots out, See you on the front!