First, let's note the fact that mod on free camouflage for World of tanks 0.9.22.0.1 does not add any additional points to the level of masking, and just improves the appearance of all tanks in the game. Free Camos can only see You, and those players who have installed the same mod. Some tanks are without camouflage - it's not a bug, but a feature of the mod. In addition, the mod adds Camos that are available for purchase.

Setting:
Thin the mod is in the file
World_of_Tanks\res_mods\0.9.х\scripts\client\mods\wotrc.json
The values of the variables: 2 - camouflage for desert maps, 1 - year variant of masking, 0 - winter version of camouflage.
For editing use Notepad ++.