Actually if that were the case, the game wouldve only sold around 4M. Thank the heavens for Xbox and PC for the added 6m sales.
8.3m were sold before the pc version, are you saying the xb1 version sold more than the ps4 version? you know that in japan alone the ps4 version has an advantage of 2m+ right? not to mention the ratio WW was way in favor of the ps4 version. I wouldn't be surprised the sales of the xb1 version is no more than 1.5m.