All Games Completed On Legendary Halowaypoint "no"

Games Halo: The Master Chief Collection
1

So I have beaten all halo camping’s in halo mcc in game. But halo waypoint says certain missions have not been completed. I WANT MY AMRMOR!!!
IN GAME
halo 10/10
halo 2 15/15
halo 3 11/11
halo 4 11/11
halo waypoint
halo 4/10
halo 2 0/10
halo 3 11/11
halo 4 8/8
I need help

2

Take a look at this thread

3

Skulls?

4

> 2533274873873545;3:
> Skulls?

It could be caused by skulls, and a bug that does not record your games. Achievements require an internet connection, and even if this guy used no skulls and had internet connected the whole time, if any server issues occurred it may have interrupted the data preventing the chievo from unlocking.