if somebody finds out, please keepp us updated. i have played black ops 2 on ps3 and reached max prestige but it doesnt show for the back ground for that. it is real annoying, we shouldnt have this issue. it shouldve linked when i linked my elite account to ghost
I haven't earned my backgrounds either. I should have gotten 4 MW3/BO2 backgrounds. I'm on Xbox One btw, and I'm linked with my CoD app. Still no luck.
I have a feeling you need to go back to your old system and play a couple mp games to get it to appear.
Same issue appeared with prior games and their predecessor prestige rewards.