Pros:

The finale

Perfect length in the maps

Epicness

Cons:

A slight improvement needs to be made on directions, it was a little too open. My team got confused on where to go

In the windmill in the finale there were like 10 specials inside, we got pwned for awhile

The finale could have used a safe room at first

Conclusion:

We got put into an 8 person co op server it was epic! This is my favorite campaign right here!

Pros:

Though they were long, they were fun for awhile

I personally think its fun to run through all the alarms

Cool

Cons:

The maps were too big and took to long to complete, i got bored after a while

On level 4 when your in the gun store near the end, and you have to open the door, it took us 25 minutes to figure out you had to push those buttons at the shooting range

Low FPS on one part of level 1

Ran out of ammo sometimes

Noobiest bots ever i was smoked, and i hit a witch while being pulled, she killed me while the bots were standing right beside me

Too many parts when you had to run out in the street, felt like deja vu

Conclusion:

You have to play online on this one or youre screwed. Overall this is an ok Campaign, it could use a little work. But it  i see you put effort into it

Pros:

Fun ,puzzle based map

Good Finale, my team thought the ship that rescues you, was part of the enemy so we spent 5 minutes trying to kill it haha

Traps, haha being crushed by walls was funny, hearing my teammate's reaction

The weapons and ammo was spread out so i liked that

Cons:

Got Confusing after a while

A little buggy when the bird thingies come out

Conclusion:

Fun exciting map great job!

Pros:

Great, snowy map not many of those

nice effects(snow, fog)

The lift was awesome! really helpful

I got 13 minutes 16 seconds all by myself, so the bots  are actually fairly good

The boiling room, i wasnt sure what was hurting me, since the door was invincible. That was a cool add on

Cons:

A little dark in some spots, hard to see where the tank was 

Thats it great job!

Conclusion:

A great survival map, i wouldnt think twice about downloading a new map made by you

Pros:

Very good, i can tell you put alot of effort into it

only ran out of ammo once

Challenging, many specials and zombies

Cons:

The horde didnt come for like 1 min and 30 seconds on the finale

I thought there were toom many alarms you had to turn on to advance to the next spot, i need a breather man! 

Conclusion:

Overall, this campaign is one of the few i have actually gotten stressed out over because we couldnt beat it. 
Very great job. I suggest you make another, Id download it

Pros:

Fun, we held out for 18 mins and 28 seconds

the mounted machine guns really helped, 

got challenging after a while!

Cons:

there is a glitch if you run to the end of the tunnel and sit there the zombies will spawn in the bunker

couldnt see anything if you killed a smoker in the hallway,

Conclusion:

If you added the m60 it would be nice, you really dont have to, i have ocd and i feel like it needs to be done :P
But overall Great Job, it was a fun defense map

Pros:

Challenging- my team died 6 times while doing the campaign on advanced

Long maps but not never ending

I liked when you ran past on level 4 you fell into a mine shaft or something

Great Graphics and setup

Not buggy atleast for me

Cons:

Ran out of ammo a couple times(not too big of a problem, just when tanks come out)

the tank got threw a couple fences we were unable to get through and killed us

Conclusion:

Overall, one of best campaigns made
great job by getting recognized by Steam 95/100