Using the addon that someone made, it allows you to play infected in the L4D2 demo. You can only have 4 people on the server, though. We all joined the infected team and played against the bots. I've also played 2v2 before, which was fun. The difficulty here is easy, because it was hard enough for the bots to make it anywhere.
We played for a couple of hours like this. Valve should have let you play as infected in the demo. Otherwise, the demo is kinda boring. Its really fun to make up strats with all the new SI. Personally, I think the charger is OP if used correctly. The jockey can really separate the group, so he can be really good too. ENJOY!
