I love a lot of things about this map, from all the theming in the menu and load screen, to the features with 3 easter eggs, to all the instructions on how to play the map at spawn. Even the gun choice was fantastic! Never got the same guns from the box twice!
But, the map layout, sorry to say, really blows. Stuff was just placed randomly in the map. I also didn't like that until I turned on power, it was too straight foward. Being on some scaffolding at spawn and having the zombies take like a half an hour make the first few rounds kind of a drag.
There are a lot of other layout things I could mention, but I don't want to bring you down too much, and there are lots of cool features that could be applied to your next map that I have full confidence you can make some really good maps with. Hope I was resourceful with my comment!