Let me try to demystify some of these settings and values for some who may not be aware of it (not meant for Lusche, LYNX or some others...).
1. You can find object damage values under Arena Settings on the clipboard by creating a LAN or off-line game.
2. The values for damage by ordnance and projectiles is based on a standard, using a 1,000 lb. bomb and 1/1,000 units of it. Maybe we could say a "damage unit"= 0.001 of damage from a 1,000 lb. bomb.
3. The equivalence of "damage units" for projectiles (bullets, cannon rounds, rockets, etc) has been determined by testing. There is no data officially published by HTC.
4. A fighter, bomber or vehicle hanger requires 2.7812 damage units to be destroyed. Obviously, 3 - 1,000 lb. bombs will do that. It can also be accomplished through a variety of ordnance.
5. A 500 lb. bomb is not equivalent to exactly 0.5000 damage units or 1/2 of a 1,000 lb. bomb. It is 0.5680 damage units, which means it is 568 lbs. So, you could actually destroy a hanger with 5 - 500 lb. bombs.
5x0.5680=2.8400, which is > 2.7812 required.
As murdr pointed out above, 2 - 1,000 lb. bombs + 1 - 500 lb. bomb = 2.5680 damage units. (hanger)2.7812 - 2.5680 = 0.2132 units short of destroying the hanger.
So, the values of ordnance required for destroying objects have been simplified in the charts.