Fun map

Pros:
1. Dark. Very dark. But at the same time it is challenging and we enjoy to play it.
2. Materials in every map are limited perfectly so that players have to figure it out what to bring and who bring what.
3. The tanks and witches are set in good places. Details map design can be seen.


Cons:
1. The direction for the first map and the last map is not so clear. Players basically have to retry a few times to know where to go.

Great to see a map which happens in ONE BIG LOCATION

Pros:
I love the design that players are going around in a one big location (i.e. the Dam) divided into 4 parts. We can see where we went previously.
The map is challenging. Have to retry 2-3 times with 2 friends of mine and with the difficulty "Advanced".
The design of reconnecting the wires is interesting.

Cons:
A bug (?) happens at the level that players have to switch on the button to lower the ground to get into it. For the first time, tanks appear. But we retried, with everything well prepared, no tanks come out. I think tank is necessary here to give some challenge to players.

A gameplay video is uploaded.

Interesting Map Design

Pros:
The map with 4-5 Tanks is very challenging. My friends of 2 and I love it.
The second last map is well designed. I love the idea that players have to first open the gate then rush to the power button of the bridge then go back to the starting point and rush though the bridge.

Cons:
A little bit too way too dark. In the first half of the campaign, my visible area is merely my flashlight area. But it is acceptable if you say it is the style of the map.
Is it a bug? At the second last map, after we retry once, we encounter -80% of zombies we used to encountered at the first time. The map is like empty.

Good Map

The map is well set. Finding a route to the exit in a dense city is fun to play. Good Job.
A video is uploaded.

Too separated

Pros:
+great atmosphere
+great environment, players have to climb up and down
+great Tank timing
+the train cart part is interesting
+the finale escaping is interesting
+no bug

Cons:
+too separated. It's a 9-map campaign, but the gameplay time is like 1 hour, same as other 4-/5-map campaign. It's is then meaningless to make it 9 maps.
+too many supply, making the campaign way too easy

Too many supply.

Pros:
Nice atmosphere created by the environment
Tank timings are good
Clear direction
No Bug

Cons:
Although the campaign has 8 sections, some of them are too short and only ~200 zombies (Advanced difficulty) are shot in one single section. Maybe try to combine them.
Too many materials. One safehouse has 8 health kits.... too many throwables.... They make the map less challenging. 
AI Bot is quite stupid. They are either walking too front away or stay behind too far.

I have upload my gameplay with 2 friends. Overall it's good.

Good Map

Map 1 is fun, the puzzle is not too difficult. It is fun to solve it.
And the hammer is an interesting melee weapon. It can knock off the special infected and I don't want to drop it once I get it in hand. :D
But the sacrifice in the last map is a bit strange. As my friend mentioned, it is not a must to sacrifice someone to restart the generator. The one who goes down to restart it still has the time to go back to the train.