Hi, I just completed every campaign in MCC on legendary and haven’t unlocked both the “legend” achievement and the helioskrill armor. I even have proof that I did, and it is linked below. I checked waypoint and it said that I have only completed 20% of halo ce (total) 54% of halo 2 (total) and 78% of halo 3 (total) (although it says that I have completed halo 4 on legendary completely). I really do not want to replay most of the campaigns as it is literally like going to hell and back (those who have actually done all campaigns on legendary would understand). I’ve been working towards this around when halo 5 came out (so nearly 2 years now).
Proof: (per mission)