Campaign achievement not unlocking

Achievement “All for one” will not unlock for my account. The in game progress shows all missions completed on heroic or higher. Achievement status shows 93% complete. I’ve sent in multiple tickets to Microsoft and now over a year later I still dont have it unlocked. Any suggestions?

Have you tried running through the game again on Heroic?

Hi everyone! I need help, I played halo 5 and completed the entire campaign in legendary. But the achievements, lord of the grave, lone wolf and forge a legend, don´t appear as unlock on my profile. I played the missions again, but it didn’t work.

Both of your records seem to be correctly registered on Waypoint so your achievements should really be unlocked.
One thing to note is that achievements are all server-side (similar to push notifications in phones).

I found that sometimes opening other achievements in completely different games would open stuck achievements from other games.
Do you have any H5 achievements left to unlock? Can you try unlocking one or maybe unlocking one in MCC?

Yeah I’ve unlocked all achievements other than this one. Solo legendary playthrough, full co op heroic playthrough and some of those missions I replayed on legendary co op. Achievement is still not unlocking. It’s been almost 2 years now and it’s just stuck. Microsoft isnt there helping at all. I’ve even talked to a supervisor there and she didnt get anything accomplished either.

> 2533274818084099;4:
> Both of your records seem to be correctly registered on Waypoint so your achievements should really be unlocked.
> One thing to note is that achievements are all server-side (similar to push notifications in phones).
>
> I found that sometimes opening other achievements in completely different games would open stuck achievements from other games.
> Do you have any H5 achievements left to unlock? Can you try unlocking one or maybe unlocking one in MCC?

Unfortunately that is his last achievement.

I have played the last level with the OP again on Heroic Co-op and it did not unlock. We’ve also unlocked a few achievements in MCC since he has completed Halo 5 in Co-op on Heroic and not had the achievement unlock.

I’m afraid he’ll need either 343i or Microsoft’s intervention in unlocking the achievement, but I don’t believe 343i has the ability to assist with achievement unlocks.

Maybe a complete run through on Co-op Heroic again is necessary, despite his Service Record displaying all missions completed in Co-op on Heroic already. I’ll check with OP tomorrow, but I’m 99% sure his achievement doesn’t display “Done! Unlocking…”

I would appreciate a review from a 343i employee, as I want to make sure we’ve done everything before another complete playthrough on Heroic Co-op, only to not have it unlock. I know if this had happened to me I would be very interested in having the achievement unlocked, so I’m attempting to help OP any way I can.