Ok, I'm having 2 problems. My roommate and I are behind a LAN, and we're trying to coop on a campaign. We know we need to port forward, but which ports need to be forwarded? Also, when my roommate tries the campaign, the cutscene intro movie lags and locks the game up. He'll usually have to restart his comp if he can't get back to the desktop at this point. I know the patch is supposed to fix things, but I'm not sure if the movie lags are related to the flickering/crashing issues. Thanks