That's weird some people use TeamSpeak, and or Ventrillo when playing any other game on PC. I tend to use the party chat more than the regular chat because some people can be far annoying in the game chat.
I can't seem to get into the Left 4 Dead series. I mean I enjoyed Left 4 Dead but after 2 weeks it just got boring. Waste of money imo. L4D2 looks the same will be fun for about 2 weeks to maybe a month then just get boring. :/ Maybe it's just me .