This is a very nice map indeed. I also love that tower. The construction of the map is very nice. The texturing is also good. I like the curvy tunnels. This map has definitely deserved its 1st place.
The r_speeds are pretty high even for my ancient 466 P2. You could had decreased them by using hint brushes. You could also have added some clip brushes to avoid players getting stuck. But anyways it's a d**n nice map.