I would vote this 4 stars, but I would be really mea as I do similar stuff like this for 5 starts.
This map actually resembles de_cs2d_laser_fun, a map I made with a friend of mine (didn't upload), due to the new tunnel and entrance to the "D"; but in Aztec style. =]
I think it's awesome, the only thing I dislike is the weapons spawned in the map.