Campaign legendary solo

So I recently started playing halo four again and I wanted to unlock the mark VI armour. So I did the whole campaign on legendary solo but didn’t get the armour. I read on another forum that it runs off commendation and right after I completed the last mission midnight i checked and apparently did not get the commendation even thought i got the achievement for completing the campaign solo legendary .

So I was wondering is their any way I don’t have to do the mission again.

P.S my internet went buggy half way through midnight so i was signed out of xbox live thats proberly why i didn’t the the commendation .

Nope, only way to get it is to be connected to XBL for the whole thing and re-do the mission. I know it’s no fun but it’s the only way.

You can do it though! Good luck!