On MW3, why does it say that I have only finished half of my campaign if I have just killed Makarov?
It probably means that there are more tasks to be completed after successfully killing Makarov. The best part of MV3 will usually give you updates on every level you enter and will notify you on the tasks remaining to accomplish.
You probably have to complete hardened and veteran.
It's actually to get %100 percent you have to get all the Easter eggs and enemy intel to complete it
you need to get all intel everything in there