The foxs_health_kit_skin.zip file you have requested: Skins / Miscellaneous / Fox's Health Kit Skin - 92.07kb 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 we have a health pack skin from Fox, which is the first in its category, I believe. :P Check out the screenshot below, and give it a go.