The points I mentioned are suggestions anyway but I think you know what I tried to say so it's cool. Well about the size I can very well be wrong *takes look at map again* but it for sure is spacious...
The 16-unit floor is above RA mainly, it's the same size as the runways on pro-q3tourney4, but when you look at the map, on the inside of the building, the floors are twice as thick. Same as on cpm4, which is mostly built out of runways like that but also uses thicker parts. Of course there is no difference to gameplay but it feels much better and the proportions look more realistic. Things like that often get brushed off like it doesnt matter but IMO they do.