This skin is made so, that the WOT decals do not have to be turned off.
Furthermore, you can use the original camos from WOT.
In the Zipfolder you will find three different versions of Jagdpanzer 38 (to) Hetzer.
Open the respective folder, the file after wot\res_mods\126.96.36.199\vehicles\german
Have fun with it.