Pros:

Good amount of zombies and tanks.

Cons:

Ending is horrible.  No direction to how to kill the head and if you end up playing with bots it takes forever to beat.  Yea you shoot the eyes but no direction that you have to shoot the back of the head.  

Also no direction that the supplies are hidden in the walls.  

Conclusion:

Ending made the map go from a 90 to a 40.