A while back I purchased Battlefield 4 Premium Edition on the Xbox 360. I put a number of hours into the multiplayer, and have made a lot of progress on many assignments.
I wish to pick up the game on the Xbox One. I found that because I already own the Premium Edition on the Xbox 360 I am entitled to a free upgrade to the Premium Edition on the Xbox One edition.
Do my online stats also carry over? For example, ranking and assignment progress.
If the stats do carry over, is this a one time upgrade? Or do both console contribute to the same stats?
I am using the same Xbox live profile on both consoles.