i think that Rad damage is going to be in SoW... jsut check out this screen
http://files.games.1c.ru/il2pict/ScreenShots_001.jpg
look at the oil rad (next to the tire in the wing) its damage "hitbox" is that purple cylinder.
so yeah looks like they have that in there... not the O2 bottles tho... i dont see and cylinder behind the cockpit.