Some feedback:
I don't live overall design: There are too many elevators that just make gameplay worse (generally i think most things like opening doors and/or other things like that make camping/lining much easier and you have bunch of them). Building are too high, so i found myself running stairs, ladders and using elevators most of time. Map has only one way to flag room (back elevator doesn't count, as you can just stand in room at bottom of it and you have view everywhere), i tried to jump over fence you made in flag room, but nor complicated double jumps work, nor trying to bounce of ramps help. Even ladder jump doesn't work, and those are hard to make already...
Most of jumps you planned are plain simple and just require jumping of ramp or sliding. I found this too simple and not entertaining for me. I felt like i'm in box i can't escape because you designed it to not be possible by any means although walls aren't too high, just making me believe i'm able to jump over this...
So what i suggest: make building less high, remove most elevators and doors, especially those that are on most used paths, make more complicated ways that would involve i.e. double jump, circle jump or things like that... And add another way to escape from flag room.
Good to see that someone actually tries to do new maps even when he is quite newbish
. My only complain is that you doesn't feel how game should play now.