Pros:

Nice use of props
Decent number of hoards and uncommons
Good campaign for versus and survival

Cons:

Hardly any tanks
Tank music in finale didnt play
You can fall off the elevator on the third chapter
A bit too short
Bots/AI get lost when being attacked by Charger, Hunter etc.

Conclusion:

A nice map and very fun to play but in the end it is too easy on Single Player as The Enemy | said and a few bugs can be fixed. 71/100 :)