Great map!
I came to CW via Tower Defence games and I've toyed with the idea of making a TD map, but never got it off the ground.
The biggest thing to remember is that you can move units in CW - you don't have to build 'em/leave 'em where they are.
The second biggest thing is figuring the supply lines!
Looking forward to the next level!
This map goes well with the other 'homage' maps - like Centipede, Space Invaders, Liberation Pinball etc...