Loved this map as much as I loved Land of the Dead.
A few things I noticed though:
- You need to make a couple more spawn points on the roof for the specimen. A berserker with a chainsaw camping in front of the doorway to the roof can take out entire waves of specimen all by himself (didn't take a screenshot of said doorway but you should know what I'm talking about).
- The patriarch will almost always fall down when trying to walk that particular wooden plank. This makes him really easy to beat. Perhaps you should extend it a little bit.
- Exploit: using the ladder to the trader, one can jump onto the door to the right.