Pros:

Great idea
i found the lack of ammo somewhat fun
Good use of ladders
good sized map
Maze like at times
nice lighting

Cons:

invisible half wall glitch scattered all over the entire game

WAY! too many health kits its much more fun to know that u have to tuff it out

needs some signs to give directions

needs more tanks
 
maybe some more special weapons-M60, grenade launcher, etc

Conclusion:

nothing less then amazing!!!!
 still a few bugs 
get rid of alot of health packs
 more tanks

But i still loved it