there should be a offline gameplay so if you can't connect to other people you could just play battling computers and you could edit the computers [choose what classes they can be and what upgrades they could have] also I think when you are selecting a online game there should be tabs like high ping, low ping, us central, moon base etc.
Wow i just found this weird glitch while i was playing a match with some friends the screen looked like the main menu but the game was still going on so i was shooting blindly then of course everyone died...Once it was over we found out all our progress got reset i tried to refresh the page and everything was back to normal.