It is a big map. People get confused about opening the blast doors - they even shut them when they are open. Couldn't figure that out. The mid-point teleport works great for the attackers. You just have to know how to take advantage of it.
Fights are furious around the flag.
I'm putting in maps of the map in the spawning rooms. Will looking into defence scoring. Did this by adding a side room to the canyon defender bunker and moving the backpacks into it. Added tons of red arrows to guide the defenders. There is now a raid.wad that goes in the TFC directory that displays the map.