....just tried this and as far as an objective for a map it seems that it will work. Set some factory buildings in a valley...inside the factory buildings place some stationary objects (I used ammo train cars and fuel tank cars) and make sure that the train cars are inside the building.You can make sure of this by hitting the enter key while the object is selected and the FMB will zoom in on the object. No parts of the train cars were visible..I flew my trusty 190 with a 500kg bomb and had a good hit on the main factory building....here is the result..

TX-Cuda
Minister if Massive Destruction