Alright, I sailed through this map with a couple friends and here is the consensus:
It's a pretty good map, no huge sightlines (good) and very nice geometry.
Here's some suggestions:
The doors coming out of spawn are a little slow, I bump into them as scout as I come out. Change their speed to around 600, because that's what I've found works best.
Yard (the area before mid) is a little small, might want to lengthen it a bit (but don't clutter it more) for easier regrouping.
The little area that seems like it will be a vent next to the point is a little difficult to get into with any class besides scout, but maybe that's the point.
Lastly, there seems to be little metal on the map, however in my eyes this is a good thing since koth maps like Viaduct tend to have less metal than health.
Otherwise, we had a fun time and look forward to the next version.
Cheers, if you need screenies of specific areas just ask.