[Doolittle81]

I don't know anything about how it is done, but Canon's Channel map (and somebody else??) has unique airfields, airfield layouts, runway(s) and taxiways modelled after real life airfields/photos, etc. perhaps you could discover how they do that and then could make more true-to-life airfields rather than being limited to the generic single runway/parallel taxiway fields of IL2.
Meanwhile your work thus far is a definite improvement to the Hawaii map, and will be appreciated.