winter vehicles

it looks like Treyarch was planning to do some sort of winter Campaign because there are fallschirmjager winter skins as well as many other things that are not in the game but can be found in the iwd files.
Winter vehicles - All i did was find the lost winter skins in the games iwd files and change the name of the skins so they replaced the original skins. I call the skins the lost winter skins because