So me and a friend had finished the halo combat evolved campaign the maw last mission took a couple tries we were on legendary. Well after the mission ended my friend got the achievement and co-op legendary completion while i did not was very upset then tried to simply run it again to hopefully get it and we got disconnected us right before the last mission. Now we cant start from check points we have to do the full mission in its entirety so I am a little upset this is how we have been passing the time while matchmaking is getting worked on and I still get screwed over. Would greatly like some kind of solution instead of rerunning it for the more then 3rd time with are failed attempts please if anyone from 343 sees this I just want my achievement and 10/10 on the mission board T.T.
Having same problem