Pros:

-Detail map
-Special zombies included
-AI is not too bad for a beta version

Cons:

-a long office map can be confused
-need more ammo in office area
-add more directions please
-once you open the door-officce map (First Crescendo Event), a tank and a witch are waiting for you in EASY setting
-near the end of map a car almost kill 2 AI bots.

Conclusion:

I think it is much harder to play this map in SP mode. (EASY setting)  I use pistols 80% of time because I do not know if there is ammo pile or not.  I think author can make better one in the near future.