Achievements For Halo 1: CE Not Unlocking.

Games Halo: The Master Chief Collection
1

I’ve completed all ten missions, yet the game isn’t giving me the stackable achievements for completing the game. When I look through the mission cards, all ten missions have a heroic difficulty symbol confirming their completion. I also have the achievements for completing each individual level.

When I look at the progress tracker it says that I have 9/10 missions complete… which makes no sense. Is there any way to figure out which mission has not been correctly stamped as complete (or any way to make the game realize that they have all been successfully completed)?

2

THIS MAY BE THE ANSWER:
Upon glancing over my way-point profile, I noticed that it has it’s very own campaign tracker. The information provided by this tracker is not a mirror copy of the stats produced by the in-game tracker. The Way-point tracker indicates that I have not completed the level titled “HALO” (which I did, but meh). At the very least I now know which level I have to replay!