Forums / Support / Halo: The Master Chief Collection

Nagato makes moving easy achievement not unlocking

OP Stamina Kai

Did it coop, halo 3 odst legendary in 3 hours. No achievement. Can anyone help?
bump
There were some I couldn't get also... Real buggy. The one where you have to get all 30 intel's. No matter what I did the marine wouldn't follow me down the hole to the second floor so the intel station would be there.