Now all I'm trying to do is mod my black ops 3 gamesave to use on another profile. So on horizon I get my new profile ID and type it in my old save and get a content error of some sort. I fire up my Xbox with my new profile and I'm back at level 1 again. I don't want to cheat I just want to be able maintain my progression with a new profile on a monthly basis, for free Xbox live. If anyone could tell me what I'm doing wrong I'd be extremely grateful, do I have to do it manually rather than use horizon?