So I've yet to buy this game, tryin' this demo (beta) out. Single player works fine without any problems. Online worked fine at first, then I ran into a fucking sven coop bug where you just have ludicrous amounts of loss for unknown reasons. The ONLY other game I've EVER had this happen in has been sven coop.
This bug is retarded weird, I get 60 loss out of nowhere(it seems like a major zombie spawn triggers it), then it throws open the console/server window(like I just hit esc) then puts me back in game. This loops until I restart L4D. Once it stopped when I just reconnected but it came back again in about 30 seconds. Even after restarting L4D the bug will come back.
I'd submit this to Steam/Valve/devs but I really have no idea what's going on other than I have 60 loss minimum.
SEE ME IN A LOBBY, MY CONSOLE BELOW:
I'll be fixing this myself if Valve doesn't over the course of... fuck there's not much demo days left.