Pros:

Very polished, good length.
Love the new voice lines, and the custom music was a nice touch.
Fun overall.

Cons:

Pretty freaking tough, even on just normal.
A couple of glitches- forklift in part 4 pushed a bot through the floor, and there were a couple of pathing problems for infected and survivors alike.
Individual maps a bit on the too-long side.

Conclusion:

Overall, damn near perfect. Bravo!

Pros:

Oh lordy. Where do I even begin.
-The breach in the wall and defending the gate were so much fun.
-Loads and loads of guns and items.
-Climbing the tower and running back through the city is effing awesome.
-ajkdl;fjkdsjf;lkj5 I just can't put into words the feeling this map makes me feel.

Cons:

Why is this section here.

Conclusion:

You sir, are an amazing individual for making this map. Den outta den.

Pros:

Optional crescendo events (Turn on lights in 1st stage, side room full of guns in 4th) are a very cool idea.
Few if any glitches, save one....

Cons:

In construction site area after the main train terminal, tank spawned and got stuck on  a pole.
Environments not really very creative, sans the train terminal, which felt like it should have had a crescendo event in it.
Rescue doors took a very long time to open, and when the final cutscene started, the tank got caught on the door and dragged along.

Conclusion:

An alright campaign with some ideas that deserve expanding upon, mainly the optional crescendos. Environments could use more variety.

Pros:

Makes it considerably easier to aim.
Looks cool.

Cons:

None.

Conclusion:

Amazing, it's both functional and cool looking.

Pros:

Good weight to it.
It's a cool idea!

Cons:

Looks smaller than it is, so i keep missing swings.

Conclusion:

Cool idea, can't believe no one did this before, but makes the weapon harder to use.

Pros:

Looks really nice.
IT'S A FREAKIN' REVOLVER.

Cons:

Super-fast reload looks a little silly.

Conclusion:

Just what I was looking for.

Pros:

Nice and long, lots of content.
Very original setting and awesome crescendo events, specially the van.
Very challenging.
Some funny new graffiti as well ^_^

Cons:

Lag in big areas.
Sometimes not very obvious where to go.
Custom voice lines occasionally cut out and don't have subtitles.

Conclusion:

Download this now. It's a great campaign and it's nice and long, plus the settings are quite varied.