Pros:

A weird campaign in the most awesome way.
Evil Dead house!? YES!
Mines of Moria!? YOU SHALL NOT PASS!(Nah I kid, you shall.)
Incredibly entertaining to play through with awesome environments that don't make sense, or have to.

Cons:

The Evil Dead house wasn't as awesome as I wanted it to be. Laughing furniture please!

Conclusion:

This campaign surprised me. I really didn't know what to expect, but I'm okay with that. While I wish the Evil Dead house had the laughing furniture from Evil Dead 2, I was still okay with the campaign. Great job!

Pros:

Faithful remake of Silent Hill
Incredibly fun with friends
Puzzle solving breaks up the tedium of regular L4D
A general sense of dread and fear
Original SH music included
Multiple ways to beat some levels

Cons:

The textures aren't all too creepy/like Silent Hill's textures
A bug on one map had me starting right at the end safehouse while the three others started at the beginning
This is only nit-picking, but would it be possible for new skins in the vpk? Like a Tank re-skin to be the SH final boss or something? That would've been cool, but no points taken off for that.

Conclusion:

This is a great port! While I wish the walls and stuff looks more demonic and bloodstained, I can't really complain too much. I had a blast with this campaign and will for a long time! Would have been cool if we could possibly get re-skinned monsters to look like SH bosses, but that's probably not possible. Great job!