Pros:

-Good horror-based song for a deadly enemy
-Cry of Fear

Cons:

-Nothing that I've noticed

Conclusion:

Love it. It fits the tank, and just puts in the urgency to either kill it or run. If we had the 2nd theme and the voices, this'd be a whole lot scarier.

Pros:

-Gives me the creeps sometimes.
-DAT FAICE AND HIS VOICE!
-A few good looting spots
-Mansion has some secrets to it.
-"ZOMG ARE YOU SERIOUS!" Made me laugh in the safe room.
-The finale seems to lack special infected.
-M60 and Golf Clubs can be found.

Cons:

-The finale seems to lack special infected (Used it twice :E
-Where's the nearest golf course?
-The Eyeball hallway on the 3rd stage(?) really bothered my eyes.

Conclusion:

I really enjoyed playing this online. I haven't seen a glitch... yet. I want to know where you got that face from. The moon's creepy face just distracted me. I think I hear the bell again... RUN! From a forest to a mansion to  a cavern to the forest again, love it. In all I'd have to say about 98/100, best campaign I've played that wasn't original.

Pros:

-Well put together
-Obstacles put up to make the campaign go a little longer

Cons:

-By the time I reached the doughnut shop, I noticed my skybox was just the missing materials pattern (checkered pink and black)
-Left 4 Dead 2 now comes with No Mercy.

Conclusion:

It is honestly pretty damn good. I only played through to the 3rd stage, because I had errors. Not sure if it's fixed now, but it probably is. Overall, I'd say about 80/100.