Achievements not unlocking for completing campaign levels on halo 1

Same here. I found all the skulls in Halo 1, I have all the individual achievements for the individual skulls. But not the achievement for having all of them.

And then the achievement for viewing each Halo 1 level in both classic and anniversary mode. It was at 95%, I completed the last level, now it's at 0%.

Edit: Also I beat Halo 1 and have the achievements for each of the 10 levels but no achievement for completing it on easy or normal. I'm currently on the third campaign mission of Halo 2, Metropolis, I haven't gotten any achievements since I got the one
for beating the first level, Cairo Station.

I currently have an issue with some achievements not working on halo 5 or being very delayed, Just campaign ones for me.

I completed the campaign but some of the achievements did not unlock for all of the levels, Will see if it works itself out on my next playthrough, Some of the achievements actually popped up as notifications a couple of weeks later which was really strange.

Hello Shigeruken,

Achievements must be unlocked in games that you purchased that progressed and completed this offer, as stated in the FAQ:

• Level 3: Ford the River (UNLOCKED BY LEVEL 1) - Earn 5,000 Rewards Credits for completing five achievements in the game(s) you purchased as part of Level 1.

Since you would not have completed level 1, you would not unlock level 3.

Completed campaign Halo 2 none of the achievements unlocked for the missions and completing even though it shows completed.

Halo 4 is worse I completed the levels and shows uncompleted even though achievement unlocks. Way to many bugs, and when I save goes to black screen.

Updates and Patches are failures. Totally frustrated and Disappointed. Microsoft give it back to Bungie - apparently this is to much for 343.

Delay Halo 5 / Guardian so another $60 is wasted.

Microsoft will bee the biggest loser according to Forbes as well as losing Fan Base.

www.forbes.com/.../microsoft-is-losing-xbox-one-momentum-due-to-343s-halo-master-chief-collection-misdeeds

1. Achievement: Déj vu

Description: Complete Campaign solo legendary.

Gamer Score: 100G

2. Achievement: Blast From The Past

Description: Complete Halo CEA Campaign.

Gamer Score: 30G