Pros:

~Surrounding / Design was very nice.
~Enough supplies.
~No laggy moments.

Map1.
~The elevator was sick!!! Loved it!

Map2.
~Tile trap was fun.
~Train tracks + Music was a nice combo.
~The flikkering light's in the long hallway's gave the right feel with it.

Map3.
~The big homeland security door was nicely made.

Map4.
~wallbreach I didn't expected ^-^ nice.
~Arm outta the toilet, zombie in washing machine, jumpscare jockey, and the boomer on the toilet...
Made me laugh harder than i should have xD totally lost focus on zombies.
Atleast a nice bit of humor.

Cons:

Map2.
~The 3 button trap, could have made an lil clue in that same room for what button is the right one.

Map3.
~The big homeland security door opened up and alarm took place.
Only thing that didn't took place are zombies, not even one showed up?
All the systems were open and alarm kept getting louder but nothing.
I kept getting these Roars that they are coming and in screen ''Here they come'' but nothing xD
Once it was fully opened and i could go to safehouse THAN a few zombies came out. :c

But other than that, no further cons. :]

Conclusion:

Was a fun well made map, really enjoyed playing it all the way through.
Some parts are indeed bit hard, but hey :] thats why I love a challenge.
My favo part will be the elevator in map1.
And ofcourse some humor in the camp is always fun.
The turrents were sometimes really helpful, and enough supplies all the way.

Even tho the big homeland door in cons I had, still giving full rate :D

Make more maps like these! haha.
Can't wait to play more.