I've got to say, that was a giant heap of fun. The couple of games we played were just tremendous parties basically, what with all the shenanigans, crazy starts, and general insanity.
Some observations:
1). For SA, the two center hangars are too close, so most of the map doesn't get explored (you probably know this already).
2). Nearly every asset is tremendously usable, except for LT's and LRM-heavy mechs. There's really no problem with this, as the map design makes it pretty obvious that such weapons wouldn't be super effective. Regardless of that though, the unit balance feels really solid.
3). Definitely keep aeros. While they do have a decent advantage on this map, it also demands competent piloting, and I feel that a couple dedicated AA units would be able to handle a decent amount of aeros fine.
4). The map is gorgeous, I can't emphasize this enough. Wonderful job you and your son have done. I also get solid fps nearly the whole time, even in heavy 10v10 action, which quite impressed me.
5). The 3d aspect of the map is a bit under-emphasized (though this might have more to do with our engagement area). The tall buildings are nice and atmospheric, but there's really no way for mechs to interact with them other than moving around them. Other than the elevated highway, the rest of the map is relatively flat, and while this does give a wonderful impression of being in the bowels of a great city, it also gets a little stale to be fighting at the same elevation the whole time.
6). Consider sprinkling dedicated BA spawn areas around the map, as even with APC's, deployment time can be a bit long (as the map is gigantic).
7). Kinda goes with #5, but maybe consider making ramps of some sort that would make it easier for mechs/vehicles to deploy at different height levels around the map, maybe even up to the roofs of some lower buildings.
All in all though, FANTASTIC job again Sal, can't wait til more servers start hosting it and more people get to experience it. Thank you and your son again for taking the effort to deliver this map to the community, and I look forward to any further work you do with anticipation.