Pros:

-Looks amazing, just like the gravity hammer
-Makes ya feel like a champion!

Cons:

-Definitely should not be the axe.
-No custom sounds :/

Conclusion:

It fits the Master chief Skin perfectly, and it has the feeling to it that makes you feel like a true spartan, sadly though because of the cons I've listed I don't enjoy it as much as I could.

Pros:

-Amazing detail, environments, and settings
-Storm effect adds a great atmosphere
-Maps flow and transition well
-Maps/Campaign length is good
-Has a good sense of realism to it
-Maps are not linear, and make for a good amount of exploration!
-Lighting is great! (For me at least lol)
-Contains originality in design, and gameplay
-High replay ability!

Cons:

-No introduction or survivor dialogue :/
-The supplies are distributed very unevenly. There are way to many health kits, yet very few shots/pills *(Excluding the map 1-2  safe room). Then while there is always a good amount of weaponry, there are to little ammo piles! Also throwables seemed very scarce throughout the campaign.
-*A saferoom should never have it's kits replaced with defibs shots & pills, and there shouldn't be saferooms without ammo piles!
-The event at the end of Map 2 has no warning that the horde is infinite, and bots should not be able to start it, giving you no time to prepare.
-Bot Navigation get's gradually worse with each map. The finale is just terrible. 2 of the bots walked out past the warning sign just to die... I WASN'T EVEN STANDING NEAR IT!!!. I also got pounced during the finale while they were fighting the tank, relatively close to my position, bots didn't kill the hunter and pick me up till I had 35 health while incapped, and I was pounced while above 70 health.
-1 texture error in a parking space in the final map
-As hard as I've searched, I've never seen an ammo pile in the finale. If this is correct, then this absolutely needs to be fixed.

Conclusion:

One of the best looking campaigns around, with an awesome atmosphere to top it off! One that truly gives off a tone that you're in a zombie apocalypse! However this all come with a price, as there are a decent amount of issues that affect the gameplay of this campaign, making this what could nearly be a perfect, Not. I would love to see a lot of things revised and tweaked in this campaign, It is amazing as is, and could only get better! Highly Recommended!

Pros:

-Very original, with exciting new events and other elements
-Supplies are bountiful, and power-weapons/ammo upgrades/laser sights can all be found
-Map layouts and design are excellent
-Great detail throughout most of the campaign*
-Map lengths and overall campaign length is good
-Good directions, but not completely linear!
-No big bugs or glitches*
-High replay ability

Cons:

-Although the maps are beautifully done, and well thought out, the transitioning is not. The maps don't feel connected to each other at all. The worst part being the second map. Enter a well that is on top of a cave, follow this cave and come out in a building in the middle of a city? The cave isn't that long, and when outside at the farm a city is not in sight at all. It's such an illogical/weird transition.
-*Most of the campaign does contain great detail, but a few areas really lack. Mostly in the city, the building that you don't go in seem awkwardly placed and just look plain ugly.
-The headlights on the cars are way to bright. I've seen this on a lot of campaigns, but they look like columns of white chilling in front of the cars. 
-The lighting is absolutely horrid in some places. SPECIFICALLY the barn in map 2. It's broad daylight, the barn has a window, and an open door, yet 1 foot inside of it, it's pitch black?!
-*Not that big of a bug, but the fallen crane outside before the foundry in map 3 will occasionally disappear depending on where you look at it.
-Upon entering the church during the finale the tank music begins if you resume traveling to the outside you'll find said tank, however if you wait at the top of the church the tank will not come up and will time-out. 
-Also during the finale (regarding tanks again) the one right outside at the helicopter is not only right after fighting the first tank (if you choose too) but is in a very rough spot even on lower difficulty's. The fact he is next to the helicopter resulted in me getting punched into the spinning blades resulting in instant death.
-And as a lot of others have been saying, there seems to be a lack of tanks. I always encounter 1 in Map 2, and the 2 in the finale, (although one is skip-able). Never encountered one on any other map.

Conclusion:

Overall, this campaign is amazing. It's well thought out, beautiful, and has many original elements to have you wanting to keep playing it. It comes with a fair share of flaws, as most campaigns do, this one's kryptonite being it's tank problems lol, but don't let that stop you from downloading this. Highly recommended!

Pros:

-Good detail for the most part*
-Supplies are well balanced & ammo upgrades/laser sights/power-weapons can all be found*
-Survivor dialogue, and somewhat of a story. (The opening scene and the beginning of Map 4 are connected which is cool. Play it to find out)
-Long, but not so incredibly long that it's frustrating, just a bit more time consuming. Supplies are distributed well enough for the length too.
-Difficulty is decently balanced

Cons:

-Like a lot of others have been saying, there is a rather big graphical bug in the first few minutes of the first map, where a (what appears to be a camping van) constantly spawns all over the place clipping into the ground, buildings, everything. Also upon leaving the first building, into the parking lot type area one vehicle fails to appear at all yet the shadow is there and you can see dead infected bodies on what would be the inside of it, and an infected that appears to dangle on it's roof. I'm assuming this missing vehicle is the one that is appearing in the graphical bug. This all needs to be fixed!
-*Most of the campaign shows good detail, however I noticed a lot, and I mean A lot of re-using of the exact same objects and textures. Detail also was not as impressive in the later maps. It gradually decreases throughout the campaign.
-*Supplies are good however there is simply way to many laser sights. Also in the very first level, within a minute of playing I came across Laser sights, an ammo upgrade, and a grenade launcher! None of these should appear this early, Especially laser sights spawning with the starting weapons!
-Not the friendliest campaign to bots. They tend to trail behind a little bit, will not pick up certain items, and they will also jump off the ladder in the elevator shaft resulting in their death.
-At the event on Map 4, if you walk over the bus on SP, you are trapped on that side, with no way of getting back or firing the gun to start the event -_____-
-Finale is another typical stand-off with two tanks, and the directions at the beginning should not lead you to a door that you can't enter yet. It should tell you where to start the event!
-I've noticed nothing has been added/changed to this since October... which is a real shame seeing how much potential this campaign has.

Conclusion:

Like I just said in the conclusion, this has potential, and a fair amount of it! It's currently not a bad campaign, but it really isn't a great one either. It is a lot longer than I prefer, but it makes up for it's length with a decent sum of positive qualities. I would love to see more improvements be made to this one, which is why it worries me that nothing has been done since October... however this campaign is still good enough for me to recommend it at this time.

Pros:

-Nice detail throughout campaign
-Supplies are well placed
-No bot troubles at all, navigation is fine
-3rd and 4th maps are not completely linear and add a little bit of exploration*
-Campaign is a little on the shorter side so it's not bad if you're in need of a quicker game.*
-After playing about 3 other custom campaigns in a row that had no ambient sounds, I was thrilled that this one actually did!

Cons:

-*The 1st and 2nd maps are terribly linear. There are no alternative routes, and the ledges on the sides are rather close to each other making the path rather narrow with no width, but these ledges also seem to take away from the forest feel, and takes away a little realism.
-*The campaign itself is good for a quick game, however each map itself is very short. The only thing adding length to any map at all are the events. (I have NO clue at all, how anybody could possibly find these maps to be "long". You would need to move as fast as a snail to think so)
-Lacked originality. The finale was a typical stand-off with two tanks, all the events are something I've done in a normal valve campaign before, and the environment is all something I've seen. 
-The environment gets repetitive. Start in a forest, go farther into the forest, go even farther into the forest... Hey look a factory randomly in the middle of a forest! I wonder whats on the other side? Oh... only more Forest. >:( 
-No survivor dialogue that I noticed
-Riot infected make no real sense being in this campaign
-The headlights/street post lights are way to bright. They don't even look like lights, just columns of white matter
-The rescue vehicle is just ludacris for the location. There is no possible way a plane could have landed there in fine condition, and then be able to maneuver around that area to be able to take-off again. 

Conclusion:

Kind of that all around average campaign. It's good enough to want to replay it every once in awhile, but not everyday. It's really just a lack of alot of it's own creative environments & elements that I haven't seen before. I'd still say to give it a try though.

Pros:

-New style is "kickin"
-Works fine, and hair/facial movements
-Feels more like what I perceive Zoey to be

Cons:

-I like another model slightly better than this one, however that one glitches out a lot.

Conclusion:

Amazing new model for Zoey! Just as cute, and fierce but with a little more flair!

Pros:

-Found no important noticeable bugs/glitches
-Supplies are distributed well
-No bot troubles other than their normal stupidity.

Cons:

-First thing I noticed, is a severe lack of detail. Every map feels severely unfinished. It honestly feels like I'm playing a N64 game
-The horizons/edges of the map look really cheesy. It really shows the most on the first map. When I look into the distance I see no landmarks referencing another map, or even a surrounding world around me. Every map feels to "cut-off" from everything else.
-Absolutely no survivor dialogue. I also heard no music or sounds in the background at all. Only the infected growls/grunts and survivor command lines. Was entirely to quiet the entire campaign.
-It does not transition and flow from one map to the other very well.
-EVERY EVENT IS THE EXACT SAME THING! All they are is activate alarm, run while fighting the horde to safety! It's so monotonous, I don't even want to replay it. I can't even begin to explain how grateful I was that finale was actually a stand-off and wasn't a rush like the finale in The Parish!
-Also Half of the things that start the events make no sense as to why they're alarming the horde! There's obviously no alarms because the campaign doesn't have sounds!
-Not to mention there's to many events! I counted I believe four in the second level? Four, that's right FOUR! That's ridiculous!
-The high school did not come off as a high school very well at all
-The high school is also named "Astley High". I don't know if that's a reference to Rick Astley, but I was in absolutely no mood at all to get Rick Roll'd during this campaign!
-Ammo upgrades/laser sights/power-weapons are either extremely scarce or fail to appear at all

Conclusion:

I read a lot of the reviews before I downloaded this one, and it didn't look like it was going to shape out to be that bad. But after playing this I can say I don't know how a majority of those people actually thought this campaign was that good... It is NOT the worst campaign I have played, but it lacks so many quality elements that I've seen in successful ones. Most of this campaign looks unfinished and I hope that that's the truth. With a lot more detail and attention to the graphical portion of this campaign it could start to develop into a really good one. So it has potential, however not the greatest. The events need to be changed, I don't know how else to put it. I personally will not recommend this to any of my friends, but anyone else is entitled to their own opinion about this one. 

Pros:

-Some new aspects and elements used
-Funny Easter eggs, and a "surprising" switch
-Finale is not a traditional stand-off, and the rescue vehicle is cool/original
-Survivors actually talk! and it's funny from from time to time
-Ammo upgrades, laser sights, and power-weapons can all be found

Cons:

-A lot, and I mean A LOT of areas lack good detail. The finale is where it shows the most.
-The edges of the maps are done with horribly boxy looking cliffs!
-Most of the events are all the same! (Start alarm, run, turn off alarm)
-To many things go unexplained! Why did a helicopter crash into a watch tower? For what purpose did I have to "Terminate" the subject? In the Finale why must I have to kill two tanks before starting the last generator?
-I got death charged. On single player. On Normal. There is a vast amount places for death charging, and apparently my director likes to see it happen.
-I counted two ammo piles the entire campaign, both appearing in the finale. Absolutely no ammo piles in the Saferooms at all!
-In the second level a short while before "Terminating the subject" A tank spawned. Immediately after that tank was dead, I could hear the growls of another tank. I walked up the stairs, a wall burst out, the tank music began, and then suddenly stopped. No tank was there, or corpse appeared. This must be a bug.
-During the finale I have absolutely no idea how the one wall opened up to let me progress, why it didn't do it the first time I walked in, or what I did to actually make it open.
-Granted, I know this based off of another game, but the transitioning from map 2 to the finale is easily the worst I've seen. I would love to know how a building located in a northern region where it is covered in snow, opens up into an Aztec ruin with nice weather on the other side? The finale doesn't look like it belongs in with this campaign at all!

Conclusion:

Sean Connery would not be impressed! Honestly the lack of detail in most of this campaign is what really started to deter me away, and the more I played through it, the more flaws I found. It does have some pro's leaning in favor of it, but I don't see enough to save this from redemption. I myself was not an avid GoldenEye player, so I am not going to tell everyone that I don't recommend this, as it may be a decent remake of the maps (I'm not sure), but for those players who probably don't know what/who James Bond is, then I tell them that this is not a recommended campaign.

Pros:

-Absolutely brilliant scenery and detail!
-Great level layout, with multiple paths to choose
-Very cool crescendo event
-Requires effort to find where you must go, and not as linear as most standard campaigns
-Custom Soundtrack
-Some Graffiti was absolutely hilarious (The Lake is a lie!)
-Although a traditional stand off the finale had a nice setting to it, and the rain was nice
-Levels are good length, and the campaign is perfect length
-Flows well map to map
-High Replay ability

Cons:

-The manor may be a little too big as it is easy to get lost inside unless you've played it a few times.
-Same thing goes for the underground tunnel. At times I found I had walked back to a place I had already been too.
-There are to many alarmed cars on the road in Map 4
-In Map 4 survivors can get stuck in between the cop car with the lights on, and the caution sign. (I was doing single player and got stuck there, had to exit to menu and re-start from that Map)
-Throwables do not seem to abundant on Finale (I may not have done a very thorough search though)
-Inaccessible building in the Finale

Conclusion:

By a far, far amount this campaign is one of the greatest I have played. I can proudly say it is my top 3! It is superb in almost every aspect. Only once was I actually disappointed, and that was when I became stuck. However there are so many positive things running for this campaign, it did more than enough to make up for it. This campaign is HIGHLY RECOMMENDED to everyone!!! 

Pros:

-Redwood is better than generic launcher
-New sound is cool

Cons:

-Not really that spectacular, still rather bland looking

Conclusion:

Just a better looking model than the original with a new and better sound. Good job!

Pros:

-Good detail, and looks awesome
-Functions perfectly
-Definitely a weapon of choice to slice down infected!

Cons:

-I prefer two handed scythes more (This is more of a sickle I believe) All personal preference though.

Conclusion:

Incredible new model to use over the machete! Gives a more evil-tone, and adds more excitement to infected killing!

Pros:

-Really cute/cool if you are into anime I suppose

Cons:

-Takes away from the whole "scary" zombie apocalypse feel...
-Too big, makes locating and crowning to easy.

Conclusion:

Something new from the generic witch. It's not what I'm really looking for, but still good job on it.

Pros:

-It's freaking Souledge!
-Works perfectly fine
-It's huge!

Cons:

-I feel it should replace the fire axe, as in the Soul Calibur games, Nightmare has a more horizontal swinging pattern, and it is a slow weapon due to it's immense size.

Conclusion:

A great weapon Idea! Awesome for slaying down hordes of infected!

Pros:

-Adds a sense of realism
-Gives you a slight look outside the scope to see if anything is coming up to you on the sides

Cons:

-Scope is a little blurry, increasingly in darker areas of maps

Conclusion:

A great mod to the standard scope on the rifles! More of a personal preference, but I am in favor of it!

Pros:

-Amazing detail, and level design throughout campaign
-Custom Soundtrack, Audio, Characters, and Dialogue!
-Requires a little more navigational skills that most standard linear campaigns
-Unique Events/Elements/Concepts throughout campaign
-More than enough supplies* with plenty of defibs, power-weapons, and ammo upgrades
-As everyone else said... It's Dawn of the Dead, in Left 4 Dead form!

Cons:

-Occasionally on Map 1, Bots will not grab their health kit, and will drop down making it inaccessible.
-A lot of items on map 3 & 4 (The gnomes in particular) clip through other objects, and the floor
-A Hunter spawned on map 3 Inside of the ceiling. His legs were protruding out, while his upper body remained above it invisible
-*Like I said there is MORE than enough supplies. I like to be a little more conservative with my health/ammo/throwables, then feel like I should never have to worry about it
-The room that explodes on Map 4 that tends to contain a few health kits, Bots seem to have a very hard time entering, and responding to picking up the kits inside.
-Map 4 & the Finale have alot of zig-zagging around obstacles that just gets rather repetitive and boring

Conclusion:

This campaign is easily one of the most beautiful, and well done ones I have seen and played. If you are a fan of the movie dawn of the dead then this campaign is an absolute must! So many new game play mechanics are implemented, and accompanied by some excellent custom audio & soundtrack, it really rounds this out to be a phenomenal campaign!
Highly recommended to everyone!

Pros:

-Maps look great, good detail
-Ammo & Supplies are challenging to find but not hard! New techniques are implemented to receive items such as Crafting your own molotovs, looting corpses that you find, and gunning down enemy soldiers! To ANYONE who has a problem with the ammo or supplies, I suggest learn to aim/conserve! I did this campaign with no problems and some ammo/supplies to spare!*
-Very unique and original elements throughout campaign!
-Custom witch models!
-Length is perfect for a 3-map campaign
-Finale has an original element that makes it more challenging, and not be a complete traditional stand-off

Cons:

-Although a great concept with crafting your own molotovs, carrying the cola bottles themselves across the map just to find a car that can do so can be tedious.
-*I did find the supplies in a fair amount however the Lack of power-weapons, melee weapons, and ammo upgrades was a bit disappointing
-The final event on the second map is very bot-unfriendly, they seem to not understand how to get over the loading truck.
-The rescue vehicle takes way to long to open. I played on normal and only I survived due to the horde coming from the vehicles location and the tanks coming in from the front as well. On expert this would prove insanely difficult and would be too frustrating to have to restart!

Conclusion:

A great campaign to say the least! The amount of original ideas implemented alone are enough to make me want to replay it! It's definitely more challenging than most, which is great! It's nice to have a campaign that I actually need to take my time on instead of trying to rip through it like I'm the spawn of Leeroy Jenkins and Rambo. If your fairly new to it, or you are a cry baby with ammo, than don't try this one until you are more of a man but if you enjoy a nice challenge then this one is definitely recommended! 

Pros:

-Levels are designed very well for a great experience!
-Flows and transitions very well
-A lot of Unique elements and qualities to look forward to in a campaign!
-Supplies are distributed evenly throughout
-No Noticeable bugs/glitches
-Maps are the perfect length!
-Requires a little more navigation than most standard linear maps
-High Replay ability!

Cons:

-Being entirely during daylight takes away some of the suspense
-The finale could have ended better. (Instead of a random hot air balloon, had it taken place at night the survivors could have used the lighthouse to signal a rescue vehicle)
-Map 4 (The boat) is a little rough on the bots navigation at certain parts

Conclusion:

Easily one of the greatest campaigns I've downloaded and played! It not only offers it's own unique elements, but it does so in a manner without anything seeming to ludacris or out of place, which I see a vast amount of other campaigns fail at.
It's setting would be better if taken place at night (Or start off in the day but reach the lighthouse by night), but that doesn't take much away from this campaign at all. I highly recommend everyone to give this a try!

Pros:

-Legend of freaking Zelda!
-Detail is good
-LoZ music

Cons:

-Absolutely terrible bot navigation, and extremely bot UN-friendly. The bots will honestly stand there and stare at objects about to kill them (The giant boulder for example)
-Although I love the theme, and the concept was nice, L4D2 was simply not made as or meant to be in any way a puzzle game. It is not what I look forward to at all in this kind of game. 
-The boss fight could have been done alot better. 
-I found no point to the rupees meaning I wasted my time trying to collect them. (The sound was alright I suppose)
-Did I mention how terrible this is to the bots? BECAUSE IT IS!

Conclusion:

The campaigns alright if you are a Legend of Zelda fan, but it absolutely needs to be done with friends. On higher difficulties playing alone would border near impossible. (I played on normal difficulty with the bots and I still had to restart a numerous amount of times due to the bots all dying for a sad excuse of a reason, and an unnoticed jockey/smoker/hunter would slip in and get me alone during a horde). 
Definitely   worth a try if you want to experience some good memories, and have fun with friends, as I've said countless times the single player is disgustingly horrible.

Pros:

-Actually feels futuristic*
-Good details in alot of areas
-Water is beautiful!
-Fair level design 

Cons:

-Map 1 is flawed. You can't get through the freezer door to the health cabinet
-The bots are terrible at navigating the ledges in map 1. (Will jump off the edge, hang off the edge when it is not even a damaging drop)
-Tank spawned at the ledges in map 1 (Horrible spot for a tank)
-A tank spawned during the events on the 2nd and 3rd map, followed by a non-event tank later in the map. Not pleased.
-Supplies seem to come in bulk at certain locations not distributed evenly throughout
-Unfinished :(
-*The campaign is titled "2019", however it seems a little more futuristic than that. I would say more like 2030-40's

Conclusion:

A stunning looking campaign, but with a decent amount of things to work out. It's a bit depressing it is unfinished but hopefully when it is it is executed well. Worth a try but not really a keeper as of now.

Pros:

-Looks better and more detailed than the originals
-New sounds are awesome

Cons:

-The hand holding the front of the Silenced Smg looks to be partially on the silencer itself.
-The Smg and Silenced Smg aren't actually the same weapon. 

Conclusion:

Two great skins to replace the bland original ones! Coming with their own sounds as well, Very good Mod!

Pros:

-Excellent detail on the Embroidery!
-Makes the original Magnum look like soy sauce
-Makes me feel fancy & rich!

Cons:

-Survivors seem to hold it on a slight angle to the right... I may just be seeing things however I don't know.

Conclusion:

Best Magnum/Desert Eagle skin out there. Enough said.

Pros:

-Looks a ton of alot better than the original

Cons:

-No blood splatter at all >:(

Conclusion:

Better than the original but at a cost. What's the point in destroying a zombies face if it doesn't show? :/

Pros:

-Excellent Detail
-Would give the original tank a run for his money
-Fits well into the left 4 dead world

Cons:

-Does not replace the Marine tank from the sacrifice (I understand it's a different model)

Conclusion:

I see no reason as to why you shouldn't replace the original tank with this slab of manliness!

Pros:

-Good detail
-The Worn look is nice
-Better than the original 

Cons:

-Still kind of average

Conclusion:

A nice re-skin for both Tier 1 shotguns. Better than most I've seen.

Pros:

-Amusing
-Mario Cameo!
-Surprisingly difficult maps that appear they would not be
-Actually feels like a FPS combined with a Platformer. (What you expect from a Mario game =p) 
-The flagpole!

Cons:

-Even for Mario the maps do not flow well together at all
-Tanks are insanely difficult to fight seeing as they can knock you off the ledge almost anywhere
-Bots tend to stand on the Generator in Map 2 if you are close to it resulting in certain death. (Don't know if that's a bug? because I stood on the generator as well and died. Not sure if that's supposed to be intentional)
-The Finale is way to easy to hold. Perhaps get rid of the Turret?
-I was a little sad that the last tank did not have a Bowser like appearance!
-More of something to screw around in with friends than be taken seriously

Conclusion:

A decent campaign. Fun to just play around in and have a laugh at Mario's ultimate demise. Could have the potential to be alot greater though.

Pros:

-Great Level design & detail
-Being a Real Madrid Fan over Barcelona it was comforting watching the city's ruination and tear through infected soccer players =p
-The finale is just amazing and crazy!*
-Not overly challenging & not to easy either. Great balance*
-Good Item distribution 
-Flows very well
-Perfect Length
-Swimming pool section is stunning!

Cons:

-Sewers. Let's be honest I think we're all getting tired of them =p
-*Despite the finales awesomeness and what I said about the difficulty not being to hard or easy... The very last part of the finale is the only exception. Being in a burning building with a constant horde and 2 tanks made it rather difficult to find where I had to go with very little time to spare. I also have yet to see any bot progress onto the rescue vehicle.

Conclusion:

Pure straight-up awesomeness should sum this campaign up. No map is perfect of course, but this one is darn close!
I'd say you are out of your mind if you don't try this one! A++

Pros:

-Amazing Level Design
-Great detail throughout entire campaign
-Not as linear as the standard campaigns
-Unique ideas not used in the standard campaigns
-Bob Marley
-Nice finale*

Cons:

MAP 1:
-Classic Jukebox in a modern office room with cubicles? Makes no sense
-Tier 2 really should not be introduced into the first level/or if it is should be very scarce
-Panic event at the end of the level is simply way to long for an infinite horde (Especially for the first map)
MAP 2:
-The computer event is simply way to long and repetitive. On higher difficulties it is insanely difficult as well
-There should never an event followed immediately after another
-Bots struggled to get onto the train
MAP 3:
-What a letdown! Honestly it is way to short, Especially in comparison to the rest of the campaign. This map needs to be longer!
-Custom audio is way to quiet, and seems unnecessary
-Bot got stuck in the room where you obtain the security card
MAP 4:
-*Although the finale is good, it's to long considering the amount of tanks you have to fight. Perhaps Move a break point between Map 3 & 4 so that 3 is longer and 4 is shorter!
AS A CAMPAIGN:
-To many supplies, and of specific ones! Way to many chainsaws and not enough other melee, while the amount of health kits is more than needed while there is very scarce or no defibrillators at all. 
-To many events. There honestly is no reason to have more than 1 event on each map!

Conclusion:

This campaign has the potential to be the best I've ever seen, but as of now it is nowhere near. Every Map has it's own flaws, they show, and they are serious ones that need to be worked out. The campaign itself is probably the most beautiful I've seen graphical wise, but the game play itself is monotonous, long, and annoying. I would still say to give this one a try, but don't keep your hopes high.

Pros:

-Beautiful design on every map
-Custom soundtrack
-Maps are perfect length for a 4 map campaign
-New weapons
-Awesome Tank Event
-Requires a little more navigation to find where to go instead of being so linear as most maps are
-Atmosphere/Rain effects are splendid!
-No noticeable bugs/glitches

Cons:

-Survivors could have had some more original dialogue
-The Finale is rather average just being a traditional stand-off with the traditional 2 tanks (Followed by a third during the run to the rescue vehicle)
-While playing Co-op on the Finale my friend had gotten stuck in the rocks near the ladder, in which I had to kill them to free them. 

Conclusion:

One of my favorite campaign I have downloaded so far! Despite a few minor cons, Everything positive about this campaign shows! I highly recommend everyone to give this map a try!

Pros:

-Excellent detail
-Combines a large variety of elements into one campaign
-The setting is amazing
-Feels like your actually traveling throughout an entire city visiting different districts
-Finale theme is original and exciting

Cons:

-Special infected spawn way to often and alot of the same ones (Boomer/spitter/jockey)
-Maps were a slight to long for my liking (Although it may seem that way as I was doing a full exploration)
-During the event on map 4 the bots did not get on the train resulting in their death
-I could not pick up a bowling ball and go bowling >:(
-Health seemed to abundant on normal difficulty

Conclusion:

Overall an incredible map! Despite my own preferences I saw no bugs/glitches. Each event is unique from each other! Map 2 Is simply beautiful! I would highly recommend this campaign to everyone!

Pros:

Looks fantastic
Ejection animation is good
Feels more accurate to me lol

Cons:

Could use it's own sound

Conclusion:

An excellent choice to replace the bland pistols with!