I just finished Halo 3 ODST legendary solo and I did not get the achievement for it. When i check the progress on the achievements app it says that I am missing one of the missions but I finished all of them.
I have two achievements for two Audio Logs (#7 and #9) that are stuck on, “Done, Unlocking…”
I have the exact same problem. Have had this problem with every single campaign in the master chief collection. Utterly sick of it.
Thought I’d copy and paste my response from another forum thread, hoping the issues and complaints will get noticed by someone and get sorted soon…
I collected the 30th audio log about 5 minutes ago.
Record Store Owner Achievement is stuck at 93% and the achievements for collecting the 12th and 23rd audio logs haven’t popped.
When I go in to my map on Mombasa streets and press LB to get in to the logs, all 30 are there so obviously collected them all. Hope this gets sorted soon.
I found all 30 audio logs, they have all been unlocked in the pause menu where they can be watched.
However, the achievements didn’t unlock for 4 of the 30 logs.
I was able to reach and activate the 30th log, however the achievement didn’t unlock.
I’m missing the achievements Hear me out(5th log), Eavesdropping(6th log) and Your Attention Please(27th log), and Audiophile(30th log).
Audiophile shows 100% in the achievement tracker and won’t unlock.
Since I’ve already activated them in the campaign, I can’t activate them a second time.
Any Ideas on how to fix this?
Side Note: I also had to replay a mission to complete legendary campaign achievement(Uplift Reserve). It showed as completed when selecting the mission, but not in the halo achievement tracking menu.
Thanks
Same thing happened to me, i’ve completed Uplift Reserve on Legendary twice now and still not getting the achievements.
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> I have two achievements for two Audio Logs (#7 and #9) that are stuck on, “Done, Unlocking…”
Same here, just Audio log #9 for me. Guess we just have to wait?
The “No Pain No Gain” achievement has been Done Unlocking since the spartan update and I am not the only 1
Here we go again…
Honestly, did you expect it to work?
I just managed to get the audio logs to pop. I logged in my girlfriends account and played Mombasa Streets in co-op. Because she doesn’t have the achievements all of the audio logs were active again. I was missing the 12th and 23rd logs. Did them in order and got the achievements together with ‘Record Store Owner’ when I got the 23rd one.
I’m also stuck. I beat the campaign by myself and didn’t unlock crap. Disappointment again. I thought they learned from the last mistake. I guess they need more time to fix more issues
My Audiologs are also messed up.
I got 22 through the main playthrough… then I went back and started finding the ones I missed. They weren’t popping. But here’s the kicker…
I only had 17 audio files in the menu, yet Waypoint said I had 22. I can’t re-get the audio logs I already picked up but aren’t showing up in the menu, so I am not sure what is going on with them.
I will keep trying to get all of them and see if it gets up to 22 and then starts unlocking them again.
if all else fails I can try to start a new playthrough on Easy and try to get them from beginning to end again. But that thought wearies me. 
Why won’t anybody from 343i acknowledge this issue?!?
UPDATE:
So, my progress was not saved, even after I got about 3-4 audio logs up near where you enter Kikowani Station. When I explored that area I found all of those still highlighted yellow again. So, I grabbed those and as soon as I earned my 23rd audio log (again) it popped, and then everything proceeded as normal as I found the last few I was missing. I was then able to save/quit and jump on Data Hive to get the last one.
I have 2 more missions to go and only 3 campaign mission achievements unlocked. Kazingo and Uplift Reserve aren’t acknowledged as complete in my rewards, although the mission select screen identified them as completed. If this prevents me from getting the legendary completion achievement I’ll be a little put out.
Like everyone else here, quite a few achievements are glitch out. Also campaign progress for Halo 3 ODST is not saving.
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> I just finished Halo 3 ODST legendary solo and I did not get the achievement for it. When i check the progress on the achievements app it says that I am missing one of the missions but I finished all of them.
Your service record says you have not completed KIKOWANI STATION on any difficulties, so you’re gonna have to redo that mission again.
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> Thought I’d copy and paste my response from another forum thread, hoping the issues and complaints will get noticed by someone and get sorted soon…
> I collected the 30th audio log about 5 minutes ago.
> Record Store Owner Achievement is stuck at 93% and the achievements for collecting the 12th and 23rd audio logs haven’t popped.
> When I go in to my map on Mombasa streets and press LB to get in to the logs, all 30 are there so obviously collected them all. Hope this gets sorted soon.
My buddy had this problem and we had to go through and get them again, it popped for him on the 23rd one.
Finished ODST on normal. The last three missions are not finished on my record. Did not get the achievent for finishing on normal. Really sick of this.