Hi! Me and my brother recently got Xbox Game Pass and downloaded the MCC Collection wanting to throw it back to the good times of Halo. We loaded it up, got all of our settings setup, added each other on Xbox and went to join each other. No matter what we do or how we join we always get an instant “Unable to join” message basically. We’ve been searching for answers for about a day and we both have found nothing. Halo community please help me!