no the skin is attached to the terrain. Whenever download the terrain you ge the skin.
Folks wont be flying around in their own skins.
Il2 each guy can use his own skin, if you have the box checked you download every skin as they enter the game.
In ah it will be no different then what we have now. The main arena skins will be the same.
However custom terrains, like those used in events or the ct or in h2h can be customized to fit.
Desert skins on a desert map, winter camo, finnish markings etc.