Board Thread:General Discussion/@comment-1313357-20130329210349/@comment-3153244-20130330134125

151.77.229.156 wrote: Why? I played Z Factor Easy and I reached round 102! One point of playing Co-op is for the medals/AP. If your ally disconnects and it's not freeplay, the game counts it as you and only you playing - you get the MM but not the medal/achievement.