If you do not have a C17_Globemaster_III folder, you will need to create one.
The C-17 Globemaster III Mod by Fercho 1-1 and KHAOS is required for these skins. They do not work on the default DCS AI C-17. These skins are very much a work in progress. I hope that you like them and the mod. The mod can be downloaded here:
Earlier this year HQ Air Mobility Command directed all Active Duty units to repaint their aircraft in a new low visibility scheme that removes most aircraft marks. This skin pack attempts to recreate that for the C-17, C-130, and KC-135 aircraft of DCS World..