Pros:

- Great map length
- Good environment
- Nostaglic - L4d1 feel (my preference)
- Challenging level

Cons:

- No med pack and guns on 4th map
- No clear directions for the panic events

Conclusion:

I just finished your map with my bunch of friends and I really felt that you had a great campaign! Although its a 6map campaign, the pacing you give the players feels good. Each map is not too long so it doesn't become too tiring. I really need to emphasis that the map length for this campaign is AWESOME. Good job!

Environment is pretty good with nostalgic feelings like we were back to L4D1 on certain map. The levels are not too easy and provides a good challenge to the players. We did it on advanced and it was enjoyable. 

On the 4th map, there were no med kits and no guns and ammo. Is this intentionally left out? It can be quite challenging as a lot of HP has been lost on the previous map. I understand that the med kits were strewn around later in the map, but it might be a little too challenging for other players and might turn them away from your great campaign. 

Also there were no clear directions for the panic events. Sometimes, we didn't know whether to camp it out or rush to off a device. I believe it could be way better if there were some hints. 

Lastly, I think this is a great campaign and we will definitely play it with my friends often! I always love map with great map length and which provides a fair challenge to the players. It just feels right and could easily be a Valve release. Its pretty hard to find good maps like this, please keep it up!