Multiplayer worked fine for the first few hours after I downloaded the game. I even hosted a coop mission, but now no servers appear on the list and when I click anything on that screen the system freezes for a good minute before coming back. This means the background game sound stops and the mouse cursor freezes in place. The multiplayer screen also takes a long time to load. Also, refresh doesn't work but just temporarily freezes everything when I click it. I completed a showcase and went back to multiplayer and this time the server list loaded but when I clicked on the ping sort, it froze and when it un-froze, there were no longer any servers on the list.