Error Downloading to on a 15” MacBook Pro Retina (1TB)

I bought this today thinking I could play it on my 15” MacBook Pro Retina (1TB), but after the purchase had completed, I was unable to download the game… I tried restarting, rebooting, and updating my Mac, but I still am unable to download the game, which is very distressing as I was really looking forward to playing (and because I spent $20 on an item that I—for some unexplainable reason—am unable to use!

JDFish06 about Call of Duty® 4: Modern Warfare™