Pros:

-Very nice design for a first map
-Interesting atmosphere
-Good use of models/decals
-Good survivor nav

Cons:

-Not very many infected
-SI nav is basically broken (they dont move or do anything till you get near)
-Very easy
-You can't shoot through some fences
-Not enough ammo dumps
-Finale is a bit boring and overused

Conclusion:

For a first map, its very nice. Since it is a first map, it doeserves no less than 75. However, the nav meshes need a complete overhaul before it is professional. I'm not saying you're bad at mapping, you live and you learn. I would also consider making more maps (maybe form land, to boat, to sea, to oil rig) and then make the rig smaller, and the finale a bit more exciting. Keep mapping, you can only get better.

Pros:

-L4D Map remake
-Re-invents the entire campaign
-Extremely challenging
-Creative with the crescendos
-Encourages seraching for items
-Sticks to the L4D tier system (Tier 1 mainly through the first 2 levels; fills campaigns with pistols, not melees)
-Phenomenal third level
-Creepiness is off the charts

Cons:

-Buggy
-One crescendo is pointless and can be skipped
-Is it really going to have 7 levels? If so, how do you plan on arranging that?

Conclusion:

           I love this campaign, and it definately deserves to be one of the best. Almost right off the bat, the creator throws you off balance when you expect to enter the tunnel like  in L4D. Thats when I knew this campaign was going to be brilliant. When he said his map wasnt a cheap conversion, he meant he was going to add entirely new segments, tunnels, caves, buildings, and more.The second level isn't too special, but is still fun to play. The third level is SPECTACULAR. The atmophere is amazing, with rainy conditions and, get this, actual lightning! Remember how in Hard Rain, you knew there was lightning, but it wasn't very clear? Clamtoll fixes that and provides breath-taking atmosphere and mood the lighting flashes, adding more to the creepometer. Then, you soon come across the all too fremiliar church. What differs this time around though is that instead of waiting for the bell to stop, you have to DESTROY it. Very creative! The fourth level is where it really got me. This map is extremely long and will make up most of the time spent in the campaign. It especially nails you when you see the saferoom, you walk forward, and wouldn't you know it, they way is blocked! Then you go on a "roof climbing adventure" just to cross 10 feet of street. The finale was interesting as well, with an added crescendo and a different escape vehicle. Death Toll was one of my favorite campaigns from L4D, but its safe to say that Clamtoll is far better.

Pros:

-It's as amazing as it looks
-Very unique
-Near spotless
-Great Map Progression

Cons:

-Needs a few touch-ups here and there
-At times, it can be a bit too hard
-Sometimes confusing to navigate

Conclusion:

Very fun for the average gamer. Although it can be a tad tough and confusing to navigate, it's a great map. I love the part in the boat, its tripped out, plus you get to se your progression, from jail to bot, and you gt to see your next objective: the lighthouse. Finale has some bugs, but still very fun. Since this is a remake of the L4D version, and because I never had L4D for my PC, I give this map an A... err 1.... err 97!

Pros:

-Very good visuals
-Plenty of areas to defend (UFO, underground)

Cons:

-Could use an ammo dump closer to UFO
-The auto-start bothers me

Conclusion:

I'd like to see this as a button push rather than auto start, but other than that, it's a great map.

Pros:

-Well mapped, nice visuals
-Copies HL2 EP1 down to the bolts (even some combine bodies can be found)
-Well placed crescendo events

Cons:

-A few special infected glitches (charging into fences, spawning in safe room; easy fix though)
-Too many mounted turrets, take away at least one
-Some areas are a little difficult to navigate (smokey building, underground)

Conclusion:

Superb map, I love it! Arguable one of the best L4D2 maps made by the community. I'd like to see some future bug fixes, but other than that, great download, worth your time!