[FltLt HardBall]

However, I've put massive research into my airfields so not only are the taxi ways and runways in the right places, but so are the hangars/barracks etc. They're in the correct historical places, so they're coming with the map

I agree. IMO any historical buildings should be on the default map; the pagoda at Henderson field, townships on Tulagi, seaplane bases, etc. All the detailed stuff like barrels, etc can be left to the imagination of the mission builder.

For example, I'm planning to litter the beaches and airfields with junk...