Pros:

Everything you could imagine
Piece of Art
Random Events
Fuel Gun Window Choice
The Gauntelts
The Events
Zombie Numbers

Cons:

Whats that ?

Conclusion:

Im not that good in writing pro and cons, cause there are in my opinion just awesomeness ! This is really by far the best campaign ever i played in a Video game. This really matched my idea of how a game should be. im really thankfull to the creator: Nililanth. You made a MASTERPIECE OF ART ! a personal milestone in my 20+ years gaming career. 

It remembered me to the movies, Cube, Cabin in the Woods, Resident Evil. Simply stunning and beautiful campaign ! 
I wont spoil anything here cause i already finished the Alpha Campaign with my Gunnery Run4Cova. i hoped and just wish to have more of this ! i had tons of ideas ion how to create such things as you did, but not half the talent that you have in you ! 

Thank You ! Most Respect and Honor for you !