The problem was that when you first completed the campaign before the update that fixed the "campaign reset" BS. That choice that you made the first time, you need to make again. You have to play ONLY the last mission and decision that you did in the first place. I was experiencing the same issue. I recieved the game on launch with the Xbox One. Beat it that night. I got the DogTag for sacrificing Irish. Yet, later on after the update I completed all assignments and collections and didn't get the "Patience is a Virtue" nor "Full Arsenal" achievements. I decided to try and make the same choice that I had made BEFORE the updatge and, low and behold, after I made that choice AGAIN I regained the dog tag for that choice and both the previously established achievements. You should try the same. I strongly encourage it.
