Is there a way to install just zombies in BO3 on PC? I'm considering buying Black Ops 3 on PC so I can play custom zombies, but because I already have Black Ops 3 and all of the DLC on Xbox One, I'm getting the PC version solely for custom zombies, but I'm not sure if I want to have 100GB of storage taken up for the entire game. Is there a way to install zombies without installing MP or the campaign?