Pros:

- "huge" Maps (But first 3 like total empty)
- Has potential
- Enough Medi Kits

Cons:

- Mostly empty maps
- kinda bad look in the dust, no story, like why are there on map 2 randomly some houses and a church (saferoom) ???
- Map 1+2 absolutly like no weapons, found only one machete and pot for 4 people, 1 shotgun (and no ammo) and later on in Saferoom from 2nd to 3rd map again one shotgun... And no ammo to refuel the Shotgun from 2nd map
- To many hordes for double pistols on map1+2
- Perma horde since we went out of saferoom from 2nd to 3rd map... Was fun without ammo and only 2 melees...
- Spawns from hordes/zombies are total shit:
    - Stood in the barn on the 2nd map,  chause of some zombies almost in a corner, right behind me a huge horde spawned...
    - Zombies/Hordes spawned also randomly in the dust right behind me
    - Was in a building, didnt even enter a room fully and in the floor next to me again a horde spawned (also my 3 friends told me same stuff occured to them on the map)
- Bad NAV (Saw twice how special infected stuck on a door, once a jockey on the door from saferoom and once smoker in a building)
- First in 3rd saferoom there were some usefull weapons etc.

Conclusion:

If you like perma hordes with mainly pistols only on huge environment, go ahead and download.
Otherwise go with a different map or wait till all the stuff is fixed...

Will make a new review with the next update, lets see if you can fix that stuff

Pros:

- Challenging, if you like campaigns with perma hordes...
- on 3rd map, the hotel had outside a very good design (Maybe fix in the next version the flashing windows)
- Many respawn rooms

Cons:

- Bad NAV... Bots died twice on 1st map... Just ran into fire and died. Also on some other parts of the campaign weird, like falling down of ladders (Nick did twice and we needed to rescue him) or just stuck somewhere...
- Way to much horde. Actually only perma hordes... (No con for those, who like it. I don't)
- Lack of detail. Lot of rooms are just empty actually and while in 1st/2nd map the streets are full, the street nearby the hotel on 3rd map is completly empty. Same with the rooms on 2nd map where the alarm appears. (not that important since new map...)
- Sometimes kinda confusing, even arrows didn't helped much than... Like finding right door etc.
- In the car park on 3rd map, you can't climb over a barricade since it's "forbidden", which you pass on the other side a bit later in the map --> highly realistic...(Maybe you should just replace the barricade which you could normaly jump over with a wall?)
- In some way lack of supplys. Because of the ammount of hordes you should maybe place a bit more granades for example...
- had several tanks that wanted to come, but than just disappeard/didnt came o.O
- Borring Final

Conclusion:

All in all the map has some potential. But you should maybe think again about your detours like on 3rd map with the Car Park, I mentioned in "cons".
Also fix nav and sometimes the not coming tanks. Also you should add more details on the parts you dont go over. It is kinda weird if you go over a street full of cars (That you need to pass on 2nd map) and go than into a building where all rooms are empty (You notice it, if you search for supplys... Otherwise you just pass the rooms) As I already mentioned, the same with the hotels on 3rd map. Inside not that bad detailed and outside. But the streets and environment "behind the map" isnt that good.
The Final wasn't that spectacular. A slow and completly stiff incoming helicopter. Maybe use the potential of 2 hotels for final? Like helicopter crash and run to the next hotel or something...

Will change/make new review with next update...