About the issue where your game is showing as having deleted DLC's or lost game totally. Go to your Steam app. Go to Steam < Settings < Downloads < Clear Download Cache. This should restart Steam and you should have access to your game & DLCs.
This needs to be fixed it kicks you out of rooms constantly!!! I have been playing this game now for at least 2 years or more . And there are some many bugs with the lobby and loading times . I was wondering when this will be addressed?