i think it would be nice to remove the lamp lights if you cant collide with them to use as hiding spots anyway
the ones in lobby, near dropdown, and in last itself
alternatively, if you want to keep them as light sources just put them so far up that they dont disturb movement or vision unnecesseraly
and i agree its better to make small changes and run around the map a bit to check symmetry problems before making the huge experimental changes
edit: the tire in balcony fence seems too gimmicky, since you can spam 2nd as soldier or demo jumping while on it