So has anyone else played the mission "invisible bear"? I'm having weird glitching during it. No gun in my hand, no scope when I pull it up. Invisible enemy vehicles, invisible enemy that don't move or shoot. And worst of all I have come to a point that all enemies are dead and my team will not advance therefore I cannot move past the checkpoint. Very annoying and have no idea why this would be happening while playing an offline campaign mode!!!!