Pros:

very nice campaign 
well lit 
loved the sniper and the mines and the air strike
lots of m60's make it fun
got kind of a full metal jacket feel from iti wanted to go all gunny on the jockey when he pounced me (i have the rashens joker jockey)

Cons:

little hard to follow at times 
way to short

Conclusion:

great campaign but to short

Pros:

great campaign setting
loved the church safe area
great intensity on the panic events
loved the finale but as the tank spawned and the bots wer fighting it everything else stopped spawning for me

Cons:

not sure about this but i kept getting c++ errors during saferooms except for the last before the finale so i wont doc points seems my l4d2 dosnt like certain maps

Conclusion:

10 out of 10 great job

Pros:

nice ideas for panic events
great idea for rescue 
great setting

Cons:

panic events appear to be bugged 
   first skipabble
   second didnt even activate
   third was a cake walk
    fourth was a joke (all the infected spawned on the opposite side of the barricade except for maybe 4)
    finale glitched i think rochelle fell off the train then right as the train pulled into the tunnel coach fell off and died but rochelle escaped. and the infected couldnt keep up with the train i just crouched and fired into the mob i could barely see) 
didnt encounter one tank (heard one as credits rolled though)

Conclusion:

great ideas but needs alot of fine tuning to get this potentially great campaign to a level like night terror or 2 evil eyes