Airfield capture, in the game, is not meant to be a realistic portrayal. The ammo bunkers are basically game pieces. The damage requirements for hangers, houses, radio towers, etc. are set for arena game play rather than strict historical accuracy.
I buy into this only to a point; that point being that they're currently -not- properly tweaked.
I don't think anyone on the HTC staff actually plays AH to the extent necessary to develop a good
"feel" for what works and what doesn't. That's not their fault. They've got actual jobs to do at HTC.
I think that there's a small cadre of people that have their ear/give 'em feedback and
those guys are feeding 'em bad scoop.