Things you'd like to see in Left 4 Dead 2, whether you play the first game or not.
+ Occasional zombie-tracker pickup, used in place of main weapon, for balance
+ A vehicle level or two (with several blockages needing manual clearing, crescendo style)
+ Bandit-type human enemies
+ Lawnmower
+ Chance of survivors "turning", with onset known only to player in question (if you make it to the safe house before you turn, you recover, if you don't you are replaced by a special infected, possibly a new unique kind)
Versus Mode
+ Zombies hear humans heartbeat (just think it would be cool)
+ Server browser on all platforms, rather than automated picks
+ Vote-based lobby leader change (for those lobbies where the leader is asleep at the wheel)
+ No joining as a spectator unless the player explicitly requests to do so
+ Mid-game team changes, as an alternative to "Server Shutting Down" screen when one side leaves
+ Occasional zombie-tracker pickup, used in place of main weapon, for balance
+ A vehicle level or two (with several blockages needing manual clearing, crescendo style)
+ Bandit-type human enemies
+ Lawnmower
+ Chance of survivors "turning", with onset known only to player in question (if you make it to the safe house before you turn, you recover, if you don't you are replaced by a special infected, possibly a new unique kind)
Versus Mode
+ Zombies hear humans heartbeat (just think it would be cool)
+ Server browser on all platforms, rather than automated picks
+ Vote-based lobby leader change (for those lobbies where the leader is asleep at the wheel)
+ No joining as a spectator unless the player explicitly requests to do so
+ Mid-game team changes, as an alternative to "Server Shutting Down" screen when one side leaves