Pros:

Vanilla Ghost House from Mario!
Ghosts!
Puzzles
The rescue vehicle's kinda cute =D

Cons:

Very difficult to play with bots
Those dark areas

Conclusion:

You need to explore the whole map though, like the dark area thing on the hallway with circling chain of spiked balls (There's a ladder there that seemed to lead to nowhere but if you continue to go down you'll be in a bright tunnel.).

This is a great map.
Perfect to be played with Mario mods.
This thing needs to be more scary, like adding jump scares.

You better try it.
Especially for Mario Fans.

Made some more.
=D

Pros:

James Heller on Left 4 Dead 2!
Nice textures
Nice first person view
Great if used in third person view

Cons:

What cons? :D

Conclusion:

It would be great if you also make an Alex Mercer skin mod for Ellis or Nick.
Or maybe some mods for offensive powers like the Claw or Hammerfist!

Pros:

Well detailed textures and graphics
Crescendo events are exciting
Weather effects
Creepy on some areas
Nice story

Cons:

It would be great if those Half Life zombies were alive and attack you.

Conclusion:

Overall the campaign is great.
One of my favorites maps I have played.
Great work!

Pros:

Mars finale is very cool
Textures are nice
Very easy to navigate
Almost 100% guaranteed you can pass each level
Lots of supplies in the house at Mars finale

Cons:

No primary weapons until you reach the 3rd map
Only one crescendo event
The first 2 levels are very short
No melee weapon found in the entire campaign

Conclusion:

The story is simple but fun to play.
First-time players on this map will surely be confused especially at the elevator part in level 3 (hadn't realized you should use the switch to go up).
Low-gravity should be applied on Mars finale to make the game play more realistic.
Still a good campaign; great work!

Pros:

Nice details and textures
Levels are long
Very creepy (especially at the sewers)
Glow in the dark suits for the commons at dark areas
Rescue vehicle (Jimmy's stock car) flies

Cons:

Very difficult especially in Single Player/Expert
Too many Jockeys and Hunters
Chargers become a problem especially at narrow spaces
Very difficult to navigate the map

Conclusion:

One of the most difficult map I've ever played!
(Hadn't realized I had to go through an air vent on the ceiling just to pass the map.)

Great map!
You'll want this to play over and over again!