Pros:

TANKS, TANKS EVERYWHERE

Nice skybox.
Large map, lots of different ways to play.
Lots of weapons and supplies (some randomized) at spawn.
No specials other than tanks. (to my knowledge)
Feels like survival but is actually a campaign.
Helicopter Rescue.

Cons:

Not many dedicated servers - if any. (Not your fault, no points deducted)
Bots aren't the best teammates (also not your fault)
The landscape is a bit boring/repetitive, would be a lot better in a realistic enviroment.
Common infected sometimes cause issues for those who just want to fight tanks.

Conclusion:

Great map, could be improved but doesn't need to be, very fun to play with friends.