The map itself Is really awesome for gameplay, but it's sortof breakable. You could easily gain the lead and grenade jump over one of the shorter walls, walk along the edges, and find little places to stand on outside of the map.
These spots I found most helpful when playing noobish friends... Anyways, I am glad it got featured, it is definantly one of the better maps on this site, If only there weren't those hiding spots. I give the map a 4.5/5, and keep up the good work Zombie!