I just finished playing the first 5 missions of Halo 4 in the MCC on Legendary difficulty (Co-op with 2 other friends), and I noticed that I still don't have the achievements "Brovershield" (requires 2 co-op missions completed on Heroic or higher), Brohammer (Requires 3 co-op missions completed on Legendary difficulty), and I noticed no progress had been made on any achievements for simply completing missions, like "I Got This" and "Can't Out It Down", and the other achievements which are for completing 100 missions, 150 missions, and so forth (on any difficulty). I then checked, and no progress had been made on any "Kill 1000 whatever" achievements, or any other achievements that I know that should have been earned, or had progress made. My co-op teammates were getting achievements for beating the Par Score on each mission (we all beat the Par Score on all 5, and Par Time on 1) and they received other achievements that I should have earned as well, but I wasn't receiving any. However, if I browse through the Halo MCC menus and look at the details/description for each of the 5 missions we completed today, it shows that I had completed all 5 missions on Legendary difficulty. It just won't reflect that in my Career stats in MCC or when viewed on Halo Waypoint. I know for sure that I am not having any stats or achievements recorded in Halo 4 in MCC, and I believe the other MCC Halo versions are also affected, but I have not verified the other game versions. I am just so frustrated at the moment, and don't feel like trying to earn achievements in the other versions right now, but I will verify this soon. Although, I am pretty sure all Halo versions in MCC are affected. My stats and achievements in Halo 5 (not included in MCC) seem to be working just fine. My brother, and Halo Co-op partner, passed away a while back. When I finally was able to play Halo again (after we were hit head-on by an idiot driver, and his passing later), I retired my old account and started a new one with my daughter as my new co-op partner. Since then, I have been playing co-op with a lot of friends, and it sickens me to realize that a good portion of my new Halo career stats are missing and might not be recovered.
I THOUGHT this was a problem in MCC about 5-6 months ago, but I have been focused on Halo 5 for most of that rime. Now, I KNOW it is happening. I have screenshots showing the missions have been completed on Legendary difficulty, but no achievements were awarded. Another thing to note is that I see "gibberish" ASCII characters for the names of some friends when looking at the mission details to see the Top 5 scores or Top 5 fastest times for the missions that I completed on Legendary difficult earlier today.
Does anyone know where I could report this so that someone could look into this issue? I didn't want to uninstall/reinstall Halo MCC if my stats/achievements for it in my Xbox Live account are corrupted. I don't know if the problem could be fixed in my account, then MCC would update my account with the missing stats and achievements, and if uninstalling/reinstalling would prevent the possibility of recovering my stats. I doubt my friends will want to repeat those missions anytime soon. We were about to start a quest to complete all Halo MCC missions on Legendary difficulty. Now, I don't want to do all of that and lose all the achievements and any record of doing it.
The community here is always so helpful, and I want to thank anyone in advance for any ideas, thoughts, or other info that might point me in the right direction of a solution to recovering my activity, or at least fixing it so that new activity will not be forever lost.