I completed the game on legendary, I should have been awarded the Lone Wolf, (legendary and Heroic finish achievements as well) but it was not awarded. The game says I completed. But the achievement was not unlocked. I was troubleshooting with Xbox this morning and they suggested to contact here. any insight on this?
This happened to me as well, on here and on halo 5 it says I’ve completed it solo legendary but no achievement, it says it’s at 93% completion on both heroic and legendary achievements. What you could try is going through the missions on heroic and whatever mission the heroic achievement pops on is the one that you need to redo on legendary. If it’s not at 93% completion then just check after each mission to know that the progress updated. This so far has been the only solution for me.
EDIT: Also make sure your connected to the internet at all times because sometimes the achievement won’t update if your not connected.
This usually means you lost connection at some point during your playthrough. Unfortunately, there is no way to determine which mission your connection failed during other than to play through them again.
I did see where it did not register a time fir a handful of missions. I ran through them and got to 93 %. Really irritating at the moment. I’ll give the Heroic a shot to narrow it down.
Solved that 1 issue. Went through service records and looked at best times. 1 mission was missing a legendary time…
Now look and says I have 73% of skulls when I have them all… geez.
When I completed it it took a week before it popped, you could either wait or keep login in and out on the dashboard of the game and hopefully it pops.