Pros:

-  Very funny
- Works pretty good if you have a perverted spray (I know I have one)

Cons:

- Cons? What cons?

Conclusion:

Hilarious, a must download if you're a fan of NMH and/or have a perverted spray.

Pros:

- set in Canada
- Non-linear (with the multiple paths)
- original and creative finale
- the crecendo event on the second map
- Very Atmospheric

Cons:

- a bit too dark sometimes

Conclusion:

This campaign is very fun, recommended for L4D fans. I just wonder why this wasn't an official Valve campaign for?

P.S. Kilplix brought me to this.

Pros:

-Nicely designed
-Nice variety of events and challenges
-Gives players some memory challenges from time to time
-Rewards players who carry gas cans by giving them nice items
-Some of the traps are creative, such as the falling cars, collapsing floors, and crushers on the ceiling
-Unique paintings that either reward or punish players

Cons:

-Is a bit too lengthy
-The Difficulty spike in the 3rd chapter (had to skip to the finale)
-Finale is wayyy too difficult (couldn't finish it)
-Completing this in Single-player is almost impossible to do
-Bad spawining locations (especially with the tanks and witches)

Conclusion:

A very unique campaign, and is highly recommended for those who like unique and challenging campaigns.

Though, it's recomended that you play this on multiplayer, make sure your friends have downloaded this map first before playing it. And make sure you're ready for a very challenging campaign.

Pros:

-It's the Stay Puft Marshmallow man, what more do you want?

Cons:

-The face looks messed up, and somewhat creepy.

Conclusion:

A very funny mod which just makes fighting the tank more funnier and funnier (especially when you use a molotov).

P.S. Ironically, it goes great with the Hank Hill sound mod, IMHO.

Pros:

-A pretty good campaign
-Original Survivors sre included in this 
-Creative Finale
-Unique lighting
-Nice Challenge

Cons:

-Easy to get lost in the first few parts
-some of the outside areas are dippressing
-odd as hell ending

Conclusion:

The Campaign was pretty good, but the ending was just pretty odd. Other than that, It's a must try, even if you're just going to play it once.

Pros:

-IT'S FREAKING LUCARIO!!
-YOU GET TO BE ELLIS, AND LUCARIO, AT THE SAME TIME!!! (if you like Ellis and/or Lucario that is)

Cons:

-The eyes are messed up
-The paws obscure the guns and melee weapons

Conclusion:

Other than it might needing some minor edits, it's a must have for Lucario fans.