Same here.
I've got all the Gold Tier/Skulls/Objectives completed on Legendary (among others), but they aren't not unlocking.
The Colony DLC achievements (Taunting vehicles and attaching Skitterers) aren't updating for me either. Which is strange, because my Forge DLC achievements popped earlier today after I met the criteria.
Halo Waypoint has inconsistent tracking, as it has me marked down for only one or two gold medals throughout.
Re-installing the game, recovering my Gamertag, and hard resets have not fixed this problem.
Same here, I've tried removing my Xbox profile and hard restarts. I've worked through campaign 3 times now, but I am unable to unlock the gold medal, mission objectives, or skulls achievements even though I've done/earned them all according to the mission select screen. Waypoint stats don't seem to line up with the game stats, but I am not sure what I can do about that...
I re-replayed the campaign again. And again. Probably my fourth or fifth playthrough.
This it was time on Easy, going after all the secondary objectives and getting gold medals. I completed each mission and moved on to the next before quittin g out. I closed the game before I turned off my Xbox each time. My gold medal achievement finally popped on the 9th or 10th mission.
I played again on Legendary, going after the Skulls/Heroic/Legendary achievement. Same as before, I never chose 'Exit' when completing a mission. No achievements.
My Waypoint stats are still off. Says I have completed everything on Legendary with all skulls and missing only one secondary objective. I also completed the Gold medal achievement in co-op twice, the second time with my partner getting the achievement without me.
The week of dailies still eludes me, even though I feel like I've done them ever day since I bought the game.
