Pros:

too many tanks ,witchs
very good map ,campaign 
bot will take medkit for themselves at the start of the campaign.
Finale like no mercy but whole layout is good 
finale tanks will might glitch and might struck 

Cons:

no much more problem at the campaign ,good to play ,there is no need to update for it , keep it up for the nxt time , i hope you might create one more like this campaign in l4d1 

Conclusion:

Nothing to say about  this campaign ,i give it 90 out of 100 

Pros:

-Good map design
-Good use of scavenge events
-Great finale
-Very good scenary
-Defending yourself on a moving vehicle
-bot error on the moving vehicle 
-it might need to kill the bots to move on to the moving vehicle and boat ,in map 1 and map 2
and you need a player take up a slot to move on the moving vehicle

Cons:

had a advice is please make the bot stable ,cos the horde will not end in map 1and 2 ,SI will still come out,and the they will not move on to the moving vehicle and boat ,please i don't hope to kill bots for that ,to move on ..., u might need  two player to join u to move on to the truck or boat in map 1 and 2 ,and the fire in map 1 must delete that cos bot will go and die at there

Conclusion:

well until you make a new update i will consider to redl it again ,i put this in my watchlist i give the campaign a 65/100..., btw is  a good campaign mostly i like your design but please make  a new update for the bot and that fire in map 1