I like the fact that if an engineer puts an SG on top of one of the capture points (i.e. cap 2) the opposing players have the ability to down the SG from above. However in some cases the SG cannot hit the player, but that's pretty much the same for every map...
I think the way the map stands now is fine. I haven't ran into any minor bugs or anything (not saying there aren't any) but it truly comes down to player skill. Like Hammock said, that's how every game is.
Nice work Elmo