Scribbled on the overview to convey my feedback, I need to playtest to give feedback on the bombsites but these suggestions might improve mids feel
I moved the bridge and stairs over a bit(made the door into the window room wider), and I think you should open the T side that leads to the bridge and make it a balcony. added stairs for Ts in mid, made the other path to mid closer to b, and raised up the CT side of mid near A and made the CT hallway in mid wider
red is brushs, light blue is railing sorryimbadwithmspaint