Campaign Issues

Besides the multiple multiplayer issues I have also experienced many campaign issues. At first I couldn’t play any games with my friends. Either we couldn’t join each other or the game would randomly quit out in the middle of playing. That issue seemed to go away after Tueday night but now a bigger issue has occurred. On the mission “Quarantine Zone” I would play co-op with my friend however in the middle of the mission our games would basically separate. I would be playing and he would be walking off cliffs and and shooting random stuff, but on his screen he was actually shooting enemies and I was doing those things. We were in the same game but not really. This happened 3 times and it’s very aggravating along with the other various issues. This game is pretty much completely nonfunctional and its ridiculous that none of this was tested before they launched this. What a disappointment. Please fix.