Completed campaign not unlocking

Games Halo: The Master Chief Collection
1

I just went back an finished halo 2 campaign on legendary an no achievements how do i get them to register?

2

This bug still exists on the MCC? Wow.

Okay, go into your MCC service record in your profile, and all the missions that are not completed on legendary in the Halo 2 section will be shown. Do these missions on easy (or any difficulty) with no skulls, and they should be completed immediately or in a couple of weeks.

3

I just got the legend achievement and I was wondering why I didn’t unlock the helioskrill armor in halo 5

4

> 2533274861139552;3:
> I just got the legend achievement and I was wondering why I didn’t unlock the helioskrill armor in halo 5

I have the same problem

5

> 2533274861139552;3:
> I just got the legend achievement and I was wondering why I didn’t unlock the helioskrill armor in halo 5

I have the same problem

6

Same crap for me.
Just Finished Halo 3 ODST on Legendary XBox One. Will not give me that “Mean Streets of New Mombasa” Achievement for it. It gives me other achievements in Halo 3 ODST, but not Legendary. The games says I have completed ALL (11/11) of them on Legendary Solo. So does the Halo WayPoint website and so does the MCC Collection App.
Does 343 even care anymore?

7

Yes, this is a known problem.

They’re working on fixing it, and have addressed it. Follow the link below to see other affected users, and what to do if this happens to you.

Link