G4's X-Play recently released a new preview of "Left 4 Dead 2" and to be honest; it looks pretty damn good. Showcasing the four new characters, new melee weapon combat and the swamp level from one of the five new campaigns, it looks like a good change of pace.
Give it a watch, share your thoughts! Myself? I've got my eye on Coach with a Frying Pan and that nifty Uzi with a silencer!