What engineers? they don't have to change one single line of code, or anything its a emulator that trick the XB1 into thinking its a 360 while you play a BC game the works already done. Licencees are the problem and since BO is out there is 0 reason to not have these come BC since the licence holder (Activision) has already let one go BC. Funnily enough right after the remaster announcement. They waited because they knew that was coming because activation told them it was. So they wait and as soon as its announced we get BO...something that everyones been screaming about for 7 months with 0 word about it. Just out of no where comes out. right after the remaster and people think they are working hard to make the games work when really its all money, money, money.

Its how business works.

This is all a plan, why rebundle and repackage and everything else for 2 console that are dead. Maybe to ignight some buzz, get a nice little bit of cash from being rebought, then make it BC and what do you know we all buy it again.