I don’t know what happened, but today I finally completed Halo 5 Guardians on legendary with IWHBYD and GBP skulls on which was two weeks of absolute pain, anyway, I checked and sat around until the end of the credits but the achievement for doing the campaign on legendary solo never turned up despite he fact that when I look through at each mission individually in the menu system it says legendary is the highest level of completion.
Also I looked in the achievements menu and noticed that it still showed my progress at 80%
Has this happened to others?
Have I done something wrong or do I just need to wait around a bit longer?
Thanks in advance
They’re all showing up as completed on Waypoint… maybe hard resets your Xbox and play a game of arena see if that pops it?
this does happen to people I wouldn’t be too worried 
Man I have the same thing with complete a heroic mission with 3+ skulls. Xbox says it is 100% done but still isn’t completed. Me and my mate have the same problem.
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> Man I have the same thing with complete a heroic mission with 3+ skulls. Xbox says it is 100% done but still isn’t completed. Me and my mate have the same problem.
If it is stuck at 100% and won’t unlock, delete your profile off your Xbox and hard reset/power cycle the console. Then re-download your profile. If it doesn’t unlock instantly then just keep playing for a while. (Yesterday I unlocked a Happy Wars achievement even though I was playing Halo 5 forge)
Achievements that don’t unlock straight away usually unlock after hard-resetting the console. You simply do that by holding the on button for 3-5 seconds until the console turns off.
It’s alright now people, I signed on today (didn’t hard reset and it’s left in always on standby) and they have appeared, thanks for the support though
i make speedrun and achivement not give to me and tmcc yes is very similar