Pros:

Great textures
New additions to zombies
Well details
great atmosphere
love that there's actually PEOPLE in the first level
LOVE THE COW LEG
Love the mods
love that there's wide open spaces

Cons:

a few things need to be cleaned up like a few places I got stuck in but that was my stupid curiosity. other than that, NO CONS!!!!
Maybe you could just add like a custom melee weapon

Conclusion:

I LOVE THIS CAMPAIGN!!!!! BEST THING I'VE EVER F***** PLAYED IN L4D2!!!!!!! EVERYTHING ABOUT IT BRING A NEW FEEL TO LEFT 4 DEAD! DOWNLOAD THIS CAMPAIGN!!!!

Pros:

Great animations
Great models
Great idea!

Cons:

-Gunfire sound seem to be a bit too soft
-HUD seems like it comes from Crysis and not Left 4 Dead 2
-When in the dark the guns still shine which makes it seem a   bit unrealistic

Conclusion:

I was looking for a replacement for the pistols in L4D2 since they seemed to be like toys instead of weapons, now I can finally shoot zombies with ACTUAL weapons. I really like this mod. One main thing I think you should change is the sound file for the gunfire since they seem like I'm shooting darts instead of bullets. Maybe try using a modified version of the original l4d pistol gunfire sounds. But other than that, BRILLIANT!