Pros:

Fun
Unique feel
Great layout
Good finale

Cons:

Missing models
Missing textures

Conclusion:

Fun as hell with some cosmetic bugs. If the bugs were fixes id give a 90.

Pros:

Makes survival fun by reinventing it.
Set up stage is done right.
Mostly strait forward in what you have to do.
The "Survival Barricade System" works almost flawlessly.
Challenging but there are enough supplies if youre smart with them.

Cons:

The "burn the cadaver" message needs to stay up a bit longer.
The saferoom door barricade needs to clip through you so people dont get accidentally pushed outside.

Conclusion:

Really fun, Teamwork is needed.

Pros:

Interesting puzzle elements
Easter eggs
original content 
Challenging 
second map was long but the difficulty was good on advanced
some really good looking areas

Cons:

Second map really starts to feel like a grind, especially with that plane
the jungle; the hidden doors were annoying and the bot pathing was awful, we didnt bother finishing.

Conclusion:

Fun in spots and worth a play if just for the first 2 maps. The overall score is too high IMO, but it deserves a passing grade. 75%

Pros:

Great maps, 
Wonderfully detailed, 
Dense gameplay, 
Realistic world, it actually feels like a city.
FUN AS HELL

Cons:

Incomplete, 
Working out where to go was great for me and my friends, but not everybody will like it.

Conclusion:

 Truly one of the best campaigns out there, even if it is 2 maps. Great if your into figuring out where to go and working your way through a map in ways more than walk down this street. These 2 maps are better than all of I Hate Mountains, all of Death Aboard and all of Dead Before Dawn. I have to say I was sure this was dead, because I looked for Unlawful Combatant in the comments, not Joe_dirt, lol.

Worth playing, these 2 maps take 30 minutes even if you know what your doing.

And no, the ACDC song should not be in it.