Pros:

+ Nice maps
+ Variety
+ Good difficulty

Cons:

- Final escape
- Short maps

Conclusion:

It was very nice campaing, but maps were little bit short and at the final view distance is not enough to see landing pad and helicopter :( it was very difficult to escape when you don't know where to go or don't see where to go.

Pros:

+ Fun level design
+ Challenging

Cons:

- Invisible props
- Crashed at the final
- Bots

Conclusion:

Level design is unique and fun and there were some traps. I think that traps could incapacitate player than kill it instantly. There were few porblems as we didn't saw all the props and bots did not play well at the times. And biggest problem was the final: it crashed :(

Pros:

+ Level desing
+ Difficulty
+ Finale

Cons:

- Lack of player clips
- Fps drops
- Bots at few places
- Stats not working

Conclusion:

Level design was overall nice and difficulty were well made. At the finale there were lots of places where to go, but it was a little bit too easy. There were many many places were player can jump off the playable area, so there is lack of player clips to block player. And I had fps drops with my laptop. Bots walked few times to flames and died there.

Pros:

+ Length
+ Difficulty

Cons:

- Invisible objects

Conclusion:

Overall very nice and fun map to play. Difficulty was fine, no too hard nor easy. But very annyoing thing were invisible objects. 

Pros:

+ Good idea
+ Map edge teleporting well made
+ Makes very good feeling about being lost at the forest

Cons:

- Maybe more pills
- The escape was hided too well (just a luck to find it?)
- Bots at the bridge
- View distance too short at the times (clipping props)

Conclusion:

Very nice map, fun to play. It is so different to other maps. I think it would be nice to have some little hills or something than just a flat ground. 

Pros:

+ High quality maps, very detailed
+ Different finale
+ Good map lenght

Cons:

- Scenerys vary a bit too much
- Finale could be a bit harder (on medium)
- Few missing textures

Conclusion:

It was wery nice campaing. I got feeling that it was more like a tech demo than campaing. Very good quality on maps and very detailed environment and fun to play. The finale was very different from any other left 4 dead 2 campaing and it was very good, but maybe a little bit too easy. Becouse there was no runing to escape vehicle, we just stood there and the rocket launched :D
And I did not have any problems with map 3, no crashes, or anywhere else.