Pros:

-It's a hanar.
-It's Blasto!
-And he's here to save Earth!

Cons:

-Nope.

Conclusion:

This one thinks this is a great mod.

Pros:

The sounds. Good ol' nostalgia!

Cons:

Too bad it's no longer the old days anymore :(((
Old sound quality is crappy.

Conclusion:

Good one!
100 points!

Pros:

Deadpool!
No bugs or gliches.
Nick's sarcastic responses fits perfecty with Deadpool.

Cons:

None of it.

Conclusion:

In conclusion, it is one of the best skins for Nick i'd ever seen.
Good jod, Splinks! 
100 points!
Keep it up with the good work!

Pros:

Minecraft!
Looks very nice... in the world were they belong (Deathcraft II)

Cons:

Looks VERY unreal on Non-Minecraft campaigns. Seriously, couldn't be just weird to see in real life, living blocks, in your street?

Conclusion:

Don't have much to say about this, but hey, they come from Minecraft.

Pros:

Zombies, Special Infected, Weapons, and EVEN SURVIVORS are made from blocks (Minecraft Style).
Dead bodies of famous Minecrafters, and L4D2 Survivors.
IT'S FRICKING MINECRAFT!!!

Cons:

AI was pretty crappy, not a good campaign with 3 bots.
Herobrine is in this campaign... O_O Kinda scared me when i saw him.

Conclusion:

What the hell can i say more? A hybrid between 2 superb games. It's just pure awesome. It's like a dream come true.
By the way, I liked how you explained the evolution of Minecraft.

Pros:

It's Solomon Grundy!!!
Awesome re-skin!
I like his walking animation.
Detail is very high quality, like he's been imported directly from Arkham City, to Left 4 Dead 2. 
His face... O_O Like he's going to beat the living shit out of you.

Cons:

When he's throwing a rock, it looks like the rock floats, pretty weird...

Conclusion:

A very awesome skin, you'll love it, and most inportant, IT'S SOLOMON GRUNDY!!!!

Pros:

Improved version of Left 4 Cake.
This time it's for Left 4 Dead 2!

Cons:

The same like I said on the older version.

Conclusion:

It's EXACTLY the same like the older version, but it's a little better.
90 points.

Pros:

This is probably THE longest campaign I had ever played in this game.
Give you that good old Silent Hill feel. (If you played it!)
Very scary, what do you expect from a campaign based on SILENT HILL?
4 endings, just like Silent Hill.
LOTS of puzzles. 
Had custom textures and sounds. (I also heard the radio.)

Cons:

Too long. (Seriously, 11 maps?)
Some puzzles are too difficult to find.
Lack of hints or tips.
The first map took me a lot of time to finish it.
You can get lost very easy. 

Conclusion:

If you are a fan of the Silent Hill franchise, and Left 4 Dead, then THIS is the one you'll need it.

100 points.

Pros:

Very realistic.
Very long and the textures were highly detailed.
Colorful finale and cool ending.
Story very well explained.
Some textures and sounds are CUSTOM.

Cons:

The ending kinda confused me...
Too few pipebombs and molotovs.
In the last chapter, when you need to climb a big ladder to move on? 2 bots jumped off the ladder and incap themselves while one of them was hanging off the edge.

Conclusion:

This campaign is...a MASTERPIECE! I had a great time playing this campaign.
Everything worked like the wind, and the most important thing for me it was on Left 4 Dead 1!
Had a lot of fun playing this one.
Like i said, the ending sequence was odd...
 
Great job, Kev! 
100 points!! 

Pros:

Very scary place, I have also seen the safe door!

Gives you a sensation that you cannot get out of there.

Very nice scenery.

It does not need any requirements.

Cons:

The map is too straight.

Oh yeah, and the map is also FULL of breakable walls.

Conclusion:

This map is perfect for survival, and also not suitable for those who are Claustrophobic. Get it?

I give 100 points for this map.