Pros:

- Brilliant level design.
- Large survival map, lots of alternative places to hold out.
- Build quality is very high, all textures, models etc well aligned/placed.
- Even the surrounding area you can't reach is well made, it's nice to see the dead air airport "over there".

Cons:

- Not many infected mobs?
- bots nav can't access the little area above the red ladder, they left me to die to a smoker here.

Conclusion:

Very well done, I look forward to whatever else you bring out! One thing though, is there any plan for a scavenge game mode? It's certainly big enough for one.