As you may know, Waypoint isn’t the best at tracking stats in campaign games. I have noticed this when looking at my Halo Anniversary campaign stats and seeing I have played over -400 hours of 1 level…
But to the point, I recently completed the Halo 4 campaign solo legendary and got the achievement. I was looking forward to getting the Mk VI armour for multilayer. When I checked the armoury, it wasn’t there. I was talking with a friend and said there was something wrong with my Waypoint campaign stats, I checked it out and this is what I found.
http://screensnapr.com/v/7PQEDx.jpg
As you can see at the bottom it says I have completed the campaign solo legendary but it also says I have only completed mission 7 on normal. I will try and replay the mission on legendary and see if it fixes the problem but I just felt that people should know about this.