Temporary Airfields - players cannot take off from it but can land on it. Single airstrip, single hangar.
Parked planes - on all airfields, destroying them slightly increases the perks required for a perk plane.
Parked vehicles - on all vehicle bases, same as above.
Rail yards/ train depot - destroying them further increases resupply time.
Radar stations - smaller radius than a radar at a base (for gameplay purpose, I know it doesn't make sense), scattered across the map, tied to the nearest base.
Villages/towns - basically the same as the ones next to a field, except it is independent. Capturing it does not affect anything except providing a small ack zone. Scattered across the map. Buildings will offer less perk points but also requires less ordnance to kill.