Great, thanks. Can I ask how airfield health works? Can I drive a Viggen and bomb a runway to destroy an airfield?
unfortunately not. Health is basically a percentage of the remaining alive and defending units at an airfield. The only way to lower health of an enemy airfield is to destroy defending units - health reaching 0% once all defending units are destroyed.
Fuel bunkers\dumps can also be destroyed to limit fuel available for enemy air operations.