It seems a bit too small, even for a arena map. I like the whole vertical combat over horizontal combat thing going for the map, but it needs more towerish buildings, maybe connecting to the center building. maybe add another floor to all the other buildings in the map. You could put a staircase in the spawn room that goes up to the floor above it, then keep the spawn door close till the match starts, then leave it open after that. You could put little bridges going from all these new floors heading to the center building. Just a suggestion, the map seems really good so far.