Pros:

-plenty of good camping spots
-experienced players can easily survive for more then 10 minutes
-loads of secrets
-decent amount of supplies
-night or day? you choose
-tank adds strategy since his punch can throw you off of the building
-breaks in the horde (but not the SI) add opportunity to resupply but with a risk, speaking of which.....

Cons:

-..........breaks in the action can become to boring or easy -tank punches can lead to some cheap deaths if you don't plan
-a bit on the small side
-can be too easy

Conclusion:

One of my favourite maps that can keep me playing for hours (the sky never loads properly for me(but I think that thats just me). It can be a bit easy but it doesn't take away from the enjoyment

Pros:

-Not too hard to frustrate, not too easy too bore
-Lots of inventive traps
-Has its very tense moments
-Layer of strategy is welcome
-Fun.....very fun :)

Cons:

-Not best played with strangers
-Had some stupid deaths with chargers ramming me of a ledge

Conclusion:

Very unique and fun, perfect length and a blast with friends. I can't think of any campaign like it (sequel plz).