I completed the Legendary Campaign with my buddy. He got the achievement while I did not, so I came here to check and see if I was missing a mission. Behold; I was mission The Sacred Icon as it did not register. I just finished completing it, again, and still no achievement for Legendary Campaign. If you look at my Service Record you’ll see that each mission is now registering for competed on Legendary, now I did check and it’s not just ‘Locked’ and waiting. It still says I’m 97% completed as if I need to finish another mission. Any insight would be helpful. Thanks everyone.