I respect what you've done for orange, it really looks great, but personally my problem with the map is much bigger then any medium-small changes to the layout itself. The problem I take up most with the map is it's empty space/random building approach to tf2. I will demonstrate with a picture.
In this picture, there are four colors I have drawn on. The colors are
red
Red represents all the open space on the map.
Yellow
Yellow is representative of buildings that are designed to break up open space, but will have little effect (possibly even negative) effect on gameplay, in addition to not accomplishing their goals. A good example of this is the waterfall pool in the lower right corner of the map, or the red equivalent on the opposite side of the map. Both of these 'buildings' are areas I even counted as open space because they really serve no purpose. A player would have to go out of their way to get there, and once there they would only be somewhere they can't benefit their team from unless they are a sniper.
Blue
The blue lines are
ground sightlines. There are many and they are massive.
The blue box around the middle tower is a replacement for hundreds of blue sightlines that would block out the map.
Green
The small boxed green section (not the line, that was an accident) is the only place on the map that I would consider a component of a good map. Know that I do not mean it serves good purpose in this map, it's just a small area that could be part of a better map.
Now, I know this picture is old, and that you have probably made some additions, but my point is that I don't think little additions can save this map. It's structure, the means by which it was built are flawed in my mind, so unless you do a massive re-haul of the map or start over I don't think it will play much better.
I'm sorry to be the one to tell you all this, and I really do respect the work you did for the map, it looks much better then it did in dev.