Pros:

Weapons and health items scattered around makes it easier to kill the tanks or avoid them.
I like how it takes a long time for the chopper to get to you since you have a harder challenge than all because the main final maps take very short times of survival for the chopper

Cons:

When at the end when the chopper comes for you, the chopper music and the tank music play at the same time which sounds really weird.
Some dead characters' bodies can not be revived due to an unknown reason.

Conclusion:

This is a really great map and I would like to see more maps like this because it is generally brilliant! :)