Pros:

Plenty to build.
Long games means fun for a while.
Constant zombies keep you busy.
When everything is built and we were in the rocket there was a feeling of accomplishment.
The tech tree forces you to prioritize what you need most.
The map is open enough that the A.I. can usually pull there weight around.

Cons:

Long games keep some people from sticking through the whole thing.
A glitch where attacking while building makes it not much of a challenge building with zombies surrounding you.
A glitch where anything in the object will get stuck in it (including players and tanks.)
Having to pour gas before continuing stumbled a lot of people.
I would prefer that the M.G. that is built be a weak automatic gun.

Conclusion:

A great map that i had fun for hours on with my friends. My biggest problem was the lack of people willing to try this map.
I'm leaving out a lot of other opinions i have to keep the review from being massive. When playing with just A.I. playing on easy is recommended.