Pros:

-Lots of interactive fun. 
-Usable/ridable skateboard.
-Usable/ridable helicopter.
-Useful map manual.
-Entertaining music and sounds, (jumping on drums, using microphone, etc).
-Disco lighting, if you activate it.
-Visually impressive map.
-The "Special" band.

Cons:

-Some interactive features, though well made, arn't that useful in a fighting sense.

Conclusion:

-Very well polished map with lots of features.
-A must have for any survival fan, and a worthy addition to any player's map collection.

Pros:

-Some good puzzles.
-Room with random-outcome spawn buttons was a great touch, though bots have a tendency to run to corner and stay there until you leave the room.
-Liked the underground maze bit but needed more features.
-End event with endless zombies creates a good rushed feel.
-Surprise in last stage's first safe room was a nice touch.

Cons:

-Lack of textures and objects.
-Bots often get killed in moving walls puzzle bit. 
-Tank spawn at very end (after pressing final switch) seemed a bit pointless.
-Running in a circular fashion inwards at end event gets repetitive, needs a more twisting feel.

Conclusion:

-Would be nice if end event had Multiple paths and shortcuts that open randomly and briefly so players have to fight to get to them in a hurry, and/or players could have an attempt at a small/quick puzzle that will either open a shortcut or something bad.
-Worth getting and having a few playthroughs, has an unfinished feel though.

Pros:

-Good thought out puzzles with various rewards depending on success, memory, and choices.
-End event is challenging and exhilerating, (Sometimes frustrating with bots).
-The "30 second crunch" part of the end event is a nice touch.
-Very clever and creative use of cars, (lmao).
-Final couple of twists was very amusing and clever.
-Innovative use of pictures.
-Fun and very replayable.

Cons:

-Laser trap/puzzle, while a nice touch, is too easily avoided.
-A bit lacking in textures and objects.

Conclusion:

-I felt there could have been a bit more variety with the textures, though the overall whiteness of the campaign went well with the theme.
-Definitly worth getting.

Pros:

-Great level Design and textures.
-Refueling ride event is a nice touch.
-Some of the enviroments are really well done.
-Loved the gnome secret and reward, very nice touch.

Cons:

-Some features while very well made don't play enough part in the gameplay.
-Not much replay value unfortunatly.
-A bit on the easy side.
-Ride a bit uneventful, the ability to turn and adjust speed to avoid various obstacles and pick different ride paths would have been great.
-Often get killed from temple explosion at end of campaign, i'm guessing the "safe area" is too close to the "explosion area", (before leaving temple incap a bot then escape, the other bots will go to save the incap, and then bots either die in the explosion or run to you and survive.

Conclusion:

-Nice small campaign worth the download and a few playthroughs.
-Ride has some great visual qualities but hardly any interactive ones.

Pros:

-Great puzzles that retain challenge even when you know them.
-8 keys from puzzles unlocks final challenge.
-You can do puzzle rooms in any order you want, (good if you don't want to do a certain puzzle at a certain time).
-Very creative and well made custom boss fight.
-Very fun and replayable.

Cons:

-Bots get stuck in/on various puzzles/areas, (warp cheat command is useful here).
-Some puzzles can take a while even when you know them, (gas can puzzle room comes to mind).
-Textures a little bland.

Conclusion:

-One of my favourite puzzle-type maps, (best with humans) download this now.

Pros:

-Level design is very good.
-Highly enjoyable and replayable.
-Build/barricade system is well implemented.
-Generates genuine feeling of a need to hurry.

Cons:

-Rather large file size considering size of map isn't it?
-Only 4 entries/exits to defend/barricade, i think one or two more would be good to up the tension abit.

Conclusion:

-A kind of survival hybrid style map, very well made, resulting in a lot of fun and replay value. Get it.
-This could easily become a regular feature in sections/endings of campaigns, (Resident evil 4's "house under siege" event comes to mind as an example).

Pros:

-Very nicely made, adds more character to the van and surrounding area.

Cons:

-Can look a bit too much if theres a lot of vans around. (is there a way to make the game randomly pick when and what skin to apply to vehicles?)

Conclusion:

-Best van skin i've seen, i nearly always use it.

Pros:

-End with L4D1 bots, mounted gun, tanks. and custom bosses, (though the flying one is too easy to kill) is well balanced and executed.
-Some nicely done traps, scenes, and backgrounds.
-Bonus room puzzle/secret is a good touch.
-Bit with boat is good and well done but could have been longer.
-Has the look of crash bandicoot.
-Custom made enemies add to the overall feel of the campaign, but...

Cons:

...Arn't a challenge, (with the exception of end boss).
-Horde events feel a bit random.
-A lot of traps, and holes can be walked around.
-Lacks a little in replayability.

Conclusion:

-Well made crash bandicoot themed campaign worth downloading.

Pros:

-Actually feels like you're in a zombie mario world.
-Flowers and turtle nice touch and well made.
-End is Challenging, well balanced with some nice touches.
-Level design is good.

Cons:

-Too Easy.
-Too short.
-Lacked a few sounds that (i think) would be easy to implement.

Conclusion:

-Good little campaign (28mb) with no real faults, could have used a few more areas/paths/ or stages.
-Definitly worth downloading.

Pros:

-Minecraft textures nice.
-Fighting tank in throne room is fun,  (i think thats what that room was lol).

Cons:

-Some minecraft textures seem a bit wasted, (red-stone blocks being explosive could be cool). or not used as well as they could be, (maybe gravel could've been the destrutible walls rather than just a solid).
-Too short.
-Not much replayability.

Conclusion:

-Nice fun minecraft themed map, best if this was a campaign but oh well.
-At 2mb it's good for a quick download and a few playthroughs but you won't be coming back to it very often.

Pros:

-Well executed doom theme.

Cons:

-Too easy.
-Too short.
-Not much replayability.

Conclusion:

-Nice little map but due to it's short length it really needed to be part of a campaign.
-At 7mb it's worth a quick play-through or 2, but you won't be coming back to it after that.

Pros:

-Well executed silent hill theme.
-Random glyph placment is good.
-Boss creative and challenging.
-Loved the tank in the you know where spot, (don't want to spoil it).

Cons:

-Some minor bot issues.
-Once you know map you can complete it fairly fast,.

Conclusion:

-Great map, captures the silent hill feel well. 
-Has joined my rotation of favourite add-on maps.

Pros:

-Weapons Tech-Tree.
-Build barricades and mounted guns.
-Build escape vehicle.
-Great fun multplayer map yet still playable as one player.

Cons:

-Bots can't build, think that's beyond creator's control.
-Bots don't enter escape vehicle when finished, (let them die,  or kill them, raise difficulty if need be).

Conclusion:

-Very fun and replayable map with different strategies/ways to finish it.
-If you havn't got this you're missing out.

Pros:

-Best jockey skin i've seen.
-Goes well with jockey's crazrd laugh.

Cons:

-Bit easier to see him but some people seem to like this so whatever.

Conclusion:

Great skin, and at 2mb download i don't see any reason not to have it.

Pros:

-Theme and music.
-Stage one's "Maze" is innovative and can be
 quite amusing and dangerous on multi-player.
-Lots of different puzzles.
-Fun and Replayable.
-Custom bosses.

Cons:

-Bots sometimes use med-pack at start of second stage even though they're health is solid green.
-Bots sometimes die from falling of various ladders.
-Bots dieing from roof falling puzzle, meaning you usually have to figh third boss without a player or 3.

Conclusion:

-A few small issues with bots, nothing i would say detracts from the campaign, (or it's score).
-One of my favourite add-on campaigns, though once you know the puzzles it can be a bit short.
-No idea what OoT is, something to do with zelda lol?!

Pros:

Great skin, much more menacing than the original.
With this skin tank feels more like a boss out to get
you, rather than some mutation you stumbled
across. I especially like using it in add-on maps.

Cons:

None.

Conclusion:

Get it.
Got it.
Good lol.

Pros:

Too many to list

Cons:

can get a bit laggy sometimes, but with the sheer number of zombies and specials running around this is understandable.

Conclusion:

Epic map, best ive played. Ive finished it many times and still come back for more, excellent work creators.
If you could only download one map, this would be it. A MUST TRY!