Here's mine: Was doing Skolas on 35, and about 4 hours into it with my group, one guy has a panic attack. His voice was shaking and he said the stress was too much, the last thing I heard was his controller hitting a wall and him yelling "XBOX TURN OFF!!!" Me and the other just sat there for a few seconds, until he left. That's the craziest exit from a fireteam I've experienced. Any other stories?