2 MCC H2:A Campaign achievements are not unlocking

Did these missions on sunday. Still havent unlocked just stuck on “done unlocking” I asked support yesterday (Xbox) They said its the developer I should be taking the issue up with sigh so here I am and what can you do? I wouldnt care as much if it was something else but this is the campaign & achievements have been important to me like that since 2k6.

Same thing happened to me. I played Halo 2 on Legendary and not all of them unlocked.

This was an issue early on for the MCC, where the achievements would take a long time to finally unlock, several days in fact. I would check back or try the MCC Support Forum for other solutions.

Despite what Xbox Support said, this is not an issue with the game. It’s a negative side effect to having server hosted achievements. The cheevos will eventually unlock, but there’s nothing you can do in the meantime to speed the process up, as far as I know. No need to redo the requirements for the achievements, they know you’ve done them. It’s just the server’s job to do stuff now. Sorry about this, but at least you don’t have to do it over, right?

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> Despite what Xbox Support said, this is not an issue with the game. It’s a negative side effect to having server hosted achievements. The cheevos will eventually unlock, but there’s nothing you can do in the meantime to speed the process up, as far as I know. No need to redo the requirements for the achievements, they know you’ve done them. It’s just the server’s job to do stuff now. Sorry about this, but at least you don’t have to do it over, right?
>
> I agree, I was very annoyed when they said ‘contact the developer’ (To me Microsoft is responsible even for MCC at the end of the day) However they did unlock whilst completing high clarity, I have nearly finished off H2:A & I hope this drowns out some of the negativity surrounding MP, But thank you for organising H2:A campaign. So far now all achievements have unlocked & if anybody is having problems I advise you wait atleast 72 hours & play other missions.