I have been having this problem as long as i can remember since i got Ghost. When i play multiplayer, every person is always muted. I have tried unmuting them with the turn mute off and even trying each person individually, but when i go to each person i get a message saying "cant toggle mute". My friend playing on the same console, same disk, doesnt have the problem. I dont like not being able to actually hear people talk. Anyone have a fix for this? Or having this problem? Thanks!