Pros:

-BEAUTIFUL
-Lovely details
-Meticulously designed layouts
-Great atmosphere- the church without music was just absolutely haunting.
-Secret area
-Lengthy and never boring

Cons:

-Bot navigation needs work, especially in secret area
-Finale horde doesn't stop when Tank spawns
-I don't like the 2nd finale tank spawn + horde. I think the tank should be removed.

Conclusion:

This campaign is pure gold. It's up there with Suicide Blitz and I Hate Mountains. I loved every minute of playing this wonderfully beautiful and spectacular campaign. The stunning level of details and the custom textures and props, and the lighting, and the skybox... I can go on and on.

One thing I have to mention: GO DOWNLOAD THIS CAMPAIGN AND PLAY IT NOW. It's so good.

Pros:

-Custom music
-Custom props
-Dialogues
-Full of details
-Amazing vistas
-Custom graffiti, billboards, and art
-Amazing architecture

Cons:

-Boring finale
-Lack of atmosphere in Map 1 and Map 3
-Some unpolished areas

Conclusion:

I had extremely interesting time playing this campaign. It made me want to explore every nook and cranny for beautiful details and amazing custom content. It brought me in without resistance and I loved playing your campaign.

Pros:

-Great custom props
-Awesome custom music
-Great visual elements
-Really cool architecture
-Interesting color corrections
-Funny dialogues
-Varied and diverse layouts
-Snow theme

Cons:

-Extremely difficult finale: falling into ice water shouldn't be instant death. Allow survivors to get back out.

-Unpolished areas
-Lacking atmosphere in 2nd map at the Great Wall
-Not suitable for Versus

Conclusion:

I really loved this campaign despite its few flaws. It was experimental and engaging. Its atmosphere and custom props brought me into the campaign.

However, this campaign is not meant for Versus at all. Map 1 is extremely tight and close, Map 2 has little places for SIs to spawn, and Map 3 is ridiculously hard for Survivors.

Pros:

-Stunningly beautiful
-Creative and expansive layouts
-Great placement of ammo, weapons, items
-Extremely fun to explore
-Fun movie
-Great design

Cons:

-None

Conclusion:

I usually don't play Survival and most maps in the games are pretty boring to begin with, so what is it about this map that made me play it for hours?...

Oh yeah, it's EFFFING AWESOME. Seriously, this is one hell of a delectable survival map that just deserves every 100 scores it deserves.

Pros:

-Beautifully designed
-Top notched
-No animation bugs or glitches

Cons:

-Ellis turns me on

Conclusion:

One of the most well-crafted and artistically beautiful mods. If there was any argument for microtransaction in L4D2 for cosmetics, this would be Exhibit A.

Pros:

-Long and challenging
-Gorgeous and fantastic details and design
-Great vistas and theme
-Amazing colors
-Dialogues
-Custom melee and Tank skin at the finale- loved it!
-Fun and epic all the way throughout

Cons:

-Not suited for Versus; too many close quarters areas, deathcharge spots, one-way drops, and chokepoints.

Conclusion:

Instead of simply porting the original, this campaign has been revamped with tons of flavour and textures that make this campaign unique and pop with artistic brilliance and eclat.

Pros:

-Nice looking

Cons:

-Uninspired at times
-Boring gameplay
-Bland design
-Weird map design
-Lack of consistent theme
-Not suitable for Versus

Conclusion:

Don't know why people love this campaign. I played it 3 times and it's really boring. It's half done and nothing is really interesting.

Pros:

-Greatly designed and detailed Map 1
-Great custom textures and props
-Finale arena is interesting

Cons:

-Map 2 lacks atmosphere and feels bland

Conclusion:

Not bad, but not great. Map 2 is where it lacks the creativity. Solid campaign, but not a must download.

Pros:

-Very peculiar, unforgettable
-Interesting gameplay mechanics
-Awesome area design
-Very grand finale area

Cons:

-Not suited for Versus, bad chokepoints
-Uninspired design at times

Conclusion:

All in all, a very great campaign that tries new design ideas and very interesting to play through. It's a bad Versus campaign, but in co-op, it's bountiful of fun.

Pros:

-Custom music
-Custom textures
-Really fun design and details
-Interesting voiceacting
-Long and fun

Cons:

-Not suited for Versus

Conclusion:

This is a really fun campaign, edited to give you more of the mall, which is always fun to explore. Download it if you want to have really fun time hearing new music, voiceacting, and looking at the fun tiny details the author has placed throughout the campaign.

Pros:

-Decent city theme
-Okay layout
-Decent length

Cons:

-Boring finale

Conclusion:

I had fun on this campaign, but it was nothing memorable or spectacular. It's nice and short.

Pros:

-Epic bosses
-Epic design
-Amazing design and colors
-New mechanics

Cons:

-Theme is repeated
-Final boss is too hard with endless horde; make lulls and give more medkits

Conclusion:

Why are you so good at making amazing bosses? This is epic and fun and just so cool. I really had so much fun playing it.

Pros:

-Ridiculously fun
-Epic and crazy
-Amazing sentryguns
-Epic usage of soundtrack
-Very cinematic

Cons:

-Finale is little bit too long

Conclusion:

This campaign is pure unadulterated epic fun zombie killing time. Go play it if you want the Michael Bay of zombie killing experience.

Pros:

-Decent
-Nice usage of foliage
-Nice chokepoints, but some are bland

Cons:

-Layout is boring
-Finale is weird, don't understand it
-When I pickup gas cans, horde scream will play but no horde will come.
-Needs more details and props

Conclusion:

This is a barebone campaign that focuses on Versus ideas such as chokepoints and tougher map layout and design. But it's really barebone and requires more editing and designing. 

Pros:

-Decent design and design
-Long and interesting
-Fun finale
-Good flow

Cons:

-Somewhat bland
-Theme is uninspired

Conclusion:

Die Screaming is sometimes fun, sometimes okay, and sometimes boring. It's decent, and wouldn't hurt to play it.

Pros:

-Innovative
-Awesome
-Cool
-Super fun

Cons:

-Waves of horde increase exponentially, causing the game to slow down
-Stats aren't recorded: when the credits roll, everything is 0

Conclusion:

Download this campaign. It's ridiculous smart and fun.

Pros:

-Bite-sized
-Fun
-Difficult

Cons:

-Bland
-Uninspired

Conclusion:

This campaign is boring. Not really fun. Gray on gray on gray through copy-paste urban areas.

Pros:

-Interesting voiceacting

Cons:

-Bland
-Bad design + lack of design and props and detail
-Cramped or too wide and open layout= bad for Versus
-Boring finale
-Lack of atmosphere

Conclusion:

I didn't have fun on this campaign. I couldn't really care about the campaign or the guy or anything. Boring campaign.

Pros:

-Nice prison theme
-Great details

Cons:

-Finale: horde doesn't stop, becomes impossible to get through, annoying.
-Bland

Conclusion:

This campaign is a solid, well designed, fun campaign. Bland, and the finale is annoying, didn't finish it. No need to download this campaign.

Pros:

-Nice forest theme
-Long
-Not too easy or difficult

Cons:

-Bland
-Finale is too easy, just get on the gas truck.

Conclusion:

This is a decent forest themed campaign. Nothing spectacular but it's solid and nice.

Pros:

-Very distinct and beautiful design
-Great skybox
-Great atmosphere
-Great level layout
-Nice progression

Cons:

-Map 2: When crossing over the crates, there's this hole where the Survivors can't get out of.

Conclusion:

Stunning campaign. It's Valve quality campaign, 100 times better than Cold Stream.

Pros:

-Variety and polish
-Great attention to detail
-Realistic proportions
-Great atmosphere
-Long and fun

Cons:

-Map 2: Subway interior is too cramped
-Map 2: Panic event- delay the Tank spawn so we can clear the horde a bit. Died so many times on expert.
Map 3: Vents seems very exploitable by Spitter in Versus

Conclusion:

This was a great campaign. Other than a few frustrations, you should definitely download this campaign and play it. It's amazingly good.

Pros:

-Meticulous design
-Really fun to explore
-Grand scale
-Epic
-Long
-Atmospheric

Cons:

-None

Conclusion:

This campaign exceeds Valve quality campaigns. This campaign is a work of art.

Pros:

-Epic
-Great design
-Amazingly detailed
-Really fun to explore

Cons:

-Finale arena needs more props and buildings

Conclusion:

It was crazy good and epic, a lovingly crafted campaign that brings solid and amazing design.

Pros:

-Innovative
-Interesting
-Great designs
-Trying new things

Cons:

-Gas tunnel; inevitable damage is bad game design
-Lackluster finale: the cinematics was unnecessary and odd

Conclusion:

I liked your new ideas, and it was fun seeing new mechanics, but ultimately, like Mirror's Edge, it was not really fun.

Pros:

-Boss
-Puzzles
-Fun arena

Cons:

-Needs more details

Conclusion:

I had fun on this innovative, fun, interesting short campaign. 

Pros:

-Great design
-Great atmosphere
-Nice design and layout

Cons:

-Water tunnel
-Placement of generator; too high
-Cramped areas + vents
-Too much infected sided; not suitable for Versus

Conclusion:

It has great design, nice arenas, and fun to explore. I don't like the water tunnel, it's a nasty chokepoint where it's supremely easy to kill Survivors. This campaign is very well designed, but terrible for Versus.

Pros:

-Games!
-Great design
-Really fun to explore

Cons:

-Nothing really spectacular though

Conclusion:

Fun, tiny yet amazingly detailed, greatly designed, survival map.

Pros:

-None

Cons:

-Boring
-Tortuous
-Way too long, grinding my patience out
-Textures repeat
-Uninspired design

Conclusion:

I felt nothing during this campaign. I was just going through tunnels and boxes and didn't have fun.

Pros:

-Decent
-Interesting arenas and crescendos

Cons:

-Lack of details
-Not atmospheric
-Finale is pretty boring

Conclusion:

This is a solid campaign. But nothing worthwhile.

Pros:

-Creative and different
-Long
-Grand scale
-Fun to navigate

Cons:

-Gets uninspired at times

Conclusion:

I loved this campaign. It's really fun and different and atmospheric.

Pros:

-Diverse
-Creative
-Epic
-Long
-Great details
-Atmospheric

Cons:

-Map 3 needs to be optimized: huge FPS drops

Conclusion:

This campaign is not meant for Versus at all. But as a campaign, it's really good and epic.

May 29th 2011: I played the new version. The new refinements were really good. I loved the edits. Still not meant for Versus, but fun nonetheless.

Pros:

-Decent
-Atmospheric
-Decent finale

Cons:

-Uninspired

Conclusion:

It's a solid campaign, but nothing spectacular in design or mechanics.

Pros:

-Epic
-Really diverse and cool maps
-Long
-Great design
-Map 3 Overwatch sounds

Cons:

-More lights needed
-Map 2 and Map 3 had unnecessarily huge amounts of Tanks
-Map 3 elevator crescendo- I hit the button without Francis in it, so I went back down, but it turns out I can't go back up. Fix this: either make it unable to go back down or allow the elevator to come back down.

Conclusion:

Not only were each map long, uniquely designed, epic, diverse, and really interesting, the atmosphere was perfect and I had a great time on it. 

Make a L4D2 conversion!

Pros:

-Fun
-Quirky
-Long
-Nice music
-Nice secrets

Cons:

-Boss could have been better

Conclusion:

This was really fleshed out and I enjoyed every map. They were ridiculously fun.

Pros:

-Long
-Great designs
-Really diverse areas
-Fun
-Great crescendos

Cons:

-Finale arena is lackluster

Conclusion:

Each map is long and different and very well detailed, except the finale, which was really bare and boring. All in all, amazing campaign!

Pros:

-Nice design
-Nice details
-Fun finale
-Diverse areas

Cons:

-None

Conclusion:

Great solid campaign. Nothing spectacular, but really solid decent campaign.

Pros:

-Amazing design as always
-Great arenas
-Fun bosses

Cons:

-None

Conclusion:

You just have a knack for creating purely amazing bosses. Keep it up!

Pros:

-LOTR Music
-Grand scale, very epic
-Really challenging, but so fulfilling

Cons:

-None

Conclusion:

A truly epic survival map. It's so big, it's crazy good.

Pros:

-Color correction
-Long
-Detailed
-Custom graffiti
-Amazing atmosphere

Cons:

-Finale arena is lackluster

Conclusion:

I loved this campaign. The story was amazingly fun to search for and it was superbly designed. Not a great Versus campaign, but it's a great campaign nonetheless.

Pros:

-Visually stunning
-Long
-Amazingly detailed and designed
-Pure fun

Cons:

-Finale is lackluster

Conclusion:

Just a solid, amazing, beautiful, lovely campaign.

Pros:

-Great map designs
-Beautiful colors

Cons:

-Cheesy and long intro
-Terrible panic events: Map 2, Map 3
-Lack of lighting
-Need more props for Infected to spawn behind

Conclusion:

I played this on expert and ultimately, while interesting, the cons really displeased me. 

Pros:

-Long
-Detailed
-Creative
-Fun

Cons:

-Needs polish and more detail

-Map 3- beginning of the map, the door out the tunnel is opened, but shows only blackness before moving outside. This thing occurs at one other point also.

-Map 3 crescendo spawns too many zombies that the game lags and becomes improbable to pass.

Conclusion:

Overall, a decent campaign. I had fun on it, it was diverse and had interesting sights and paths.

Pros:

-Long; route markers are useful
-Very detailed
-Amazing design
-Dialogues
-Interesting lightings; makes the map more vibrant
-Rewards exploration
-Nice skybox
-Great architecture
-Great artistic style

Cons:

-Way too infected sided; long length, too much chokepoints, too much verticality

Conclusion:

So I played 1.6 and I see the vast refinement the campaign went through, such as more lightings, different textures, route markers, and additional features. I loved the deathscreams when I had to jump over the cliff in Map 2. I also loved the Map 2 saferoom, just amazingly detailed.

I played the campaign on Normal this time instead of expert last time, and Map 2 doesn't seem that long as before. So I guess I perceived Map 2 to be long because it was more difficult. 

I, however, don't think this campaign is meant for Versus. It's easy to separate, make them return, and do deathcharges. There are tons of areas where it's too cramped.

Pros:

-Amazing, epic design
-Extremely fun
-Great set pieces
-No boring lulls
-Great atmosphere

Cons:

-None

Conclusion:

I love you so much right now. This was epic in 110% of the word. Lasers, rolling room, fire super power, falling cars, amazing camera angles, amazing lighting, amazing gas mechanics, pure brilliance.

The ending was perfect. I love you so much.

Pros:

-Great layout
-Variation of locations (sewer, bridge, mine, town, etc.)
-Map 4 was very interesting- gave many alternate paths
-Great finale

Cons:

-Map 3 mine seems to easy for Infected team to get deathcharge
-Map 4 needs some lighting at strategic spots
-Map 4 stone bridge is too low, so when I walk off, I die instantly- very bad chokepoint in Versus
-Map 4 also has this weird spawning of two Jockeys concurrently every 20 seconds
-Map 4 also needs some signs so people can't easily get lost
-Needs polish- add some props and objects to fully flesh out the world

Conclusion:

I loved this campaign. It was a breath of fresh air and I enjoyed the interesting paths and design of the environment thoroughly. I know this will be a great Versus campaign too. All it needs is artistic polish and some changes to the chokepoints I mentioned in the cons.

Pros:

-Amazing details
-Amazing layout
-Amazingness

Cons:

-None

Conclusion:

This campaign was really fun and is sure to be a great versus campaign too!

Pros:

You had me at "regenerating slo-mo" button. I grant you permission to impregnate me any time you want.

Cons:

None

Conclusion:

Thanks for listening to what I and probably many others said before. I can't wait to play this map over and over and over and over and over and over again. Did I mention how amazingly detailed this map is and L4D1 survivors makes it more awesome? No? Well, I just did.

Pros:

So scary, I stopped playing
Feels like a survival horror
Lack of directional arrows are good
Exploration is encouraged
Realism = TRUE HORROR
Good design and flow

Cons:

Sounds aren't dynamic, I don't like knowing where I will hear the ghost boos and stuff
Add a bit more lampposts, like one or two more
Reduce ammo piles, remove Tier 2 for a more survival horror feel

Conclusion:

Oh my god, this is such a scary campaign. Shows the versatility of L4D2. Definitely PLAY WITH FRIENDS FOR MOAR FUN! Don't even try this on expert.

Pros:

-Amazing atmosphere and environment
-Amazing details
-Amazing colors (love the saturation)

Cons:

-None

Conclusion:

One of the best survival maps ever. Beats The Last Stand and all other Valve survival maps by a mile.

Pros:

-Amazing attention to detail
-Great graffiti and math writings
-Feels like X-File
-Great colors, especially the finale
-Great atmosphere
-Feels like Resident Evil 4 when opening the gate in Map 3

Cons:

-No spectacular ending to a spectacular campaign and finale

Conclusion:

OMG, this is one of the best creative campaigns I have played. I want to give you 100 but you need to add something to the finale.

Pros:

-Great designs and atmosphere
-Labyrinthe maps makes for a fun exploring and versus game
-Collecting barrels
-Great finale

Cons:

-Some areas don't feel realistic
-Repeating bland textures

Conclusion:

I had great fun with this campaign. Love the finale. This is just a shy near from being Valve quality, Just needs some polish and better textures.

Pros:

-Good port

Cons:

-Too much throwables such as bile bombs
-Don't like the scavenge finale: too easy
-Map 4, at the statue of Atlas, the horde won't stop coming.

Conclusion:

Good port. Just fix the cons so we can have a great port.

Pros:

-Good port

Cons:

-None that I noticed

Conclusion:

It's a fine port and you should download this if you want to experience L4D1 campaign with L4D2 zombies and weapons.

Pros:

-It's a fine port

Cons:

-None that I noticed
-L4D2 zombies

Conclusion:

It's No Mercy for L4D2. What else can I say? It's a good port. No closet camping.
But instead of nurses and patients, you get Southern L4D2 zombies. Ruins the mood.

Pros:

-Amazing technical feat
-Great colors
-Great design

Cons:

-None

Conclusion:

It's just a bowl of fun. Have a quick co-op game with your friends. You'll enjoy the fun.

Pros:

-Fun map
-Expertly designed
-Love the white starkness

Cons:

-Start timer

Conclusion:

Great survival map. All the nooks and crannies are fun to discover. However, the auto start timer is frustrating. I know it's to give the feel that something has escaped and you have to prepare for the inevitability, but I can't explore the map nor figure where I want to go, and it's just frustrating.

Pros:

-Amazing details and layout
-It has that Feng Shui- all props and paths are made meticulous to have natural and amazing flow
-Nice colors
-Valve quality map
-Believable, the areas feel realistic
-Great finale

Cons:

-None

Conclusion:

Nothing but praise for this map. It's amazing and you will have fun on this map.
I haven't played Versus on this, but I have a feeling it'll be great.
Also, I'm not sure, but are the graffitis custom made? Some were funny as heck!

It's nice to move through the map, never wondering "What the hell is this place?" and "I was in a town, now I'm suddenly in a water treatment plant, what the hell?" 

Pros:

It's an okay campaign.

Cons:

Needs better details
Poor design layout
Uninspired

Conclusion:

Ehh. Didn't have that great time with this campaign.

Pros:

Fun short campaign
Finale map is complex but fun to explore: gives many holdout places
Nice atmosphere

Cons:

The stair that lead to a untouchable ground: you fall 3 feet and die?
Needs better details

Conclusion:

Fun, short, and atmospheric. Enjoyment may vary with each player.

Pros:

Super fun
Reliving 5 horror movies is awesome
Designs are great

Cons:

None

Conclusion:

Night Terrors is a campaign that focuses on the scene and environment and designs, and this leads to great gameplay and fun while allowing great atmosphere at the same time. A must download if you are a fan of horror movies.

Pros:

Good atmosphere
Nice finale
Nice intro

Cons:

Maps are too big, SIs can't do anything
Endless hordes
Not polished and uncreative

Conclusion:

You just need to work on the things I mentioned in the cons. If you made the map smaller and gave details to the map, it would be great.

Pros:

Amazing revamp of the original map
Great layout and details
Love that weapons can only be picked up once
So fun

Cons:

None

Conclusion:

The mapmaker has taken Death Toll to the next level, providing so much diversity in one campaign. A must download.

Pros:

Fun
Difficult
Nice mod

Cons:

Not much

Conclusion:

This is a great homage to Half Life 2, and the amount of fun you can have on this map shows how amazing the maps were.

Pros:

Good conversion

Cons:

Some navigations for bots and zombies are wonky, for example, the barn at the finale, the zombies only come up the ladder instead of the sides, very anticlimactic

Conclusion:

Read the pros and cons