What if I just wanted to unlock the "Nuked Out Hidden Calling Card" ? And is that the calling card you get when you get a 30 gun streak?
I guess we'll find out. I just got it for that when I saw the list of options and I'd recommend do it now while it's undetected. Not sure if they can check your highest gun streak. If so, try to edit it to 30 if you can find a way and they'll never be able to check all your games because it doesn't show them all. The risk would be SOOO unlikely I assume.