To make a MA map is a LOT of work.
As some-one who has merely played with the Terrain Editor I think that is still something of an understatement. The work involved is Huge!
For those asking about editing:
I'm no expert, but I do appreciate the Maps we use are the compiled result of all sorts of data files. You can't edit a compiled map, you need the files it was built from to do that. Even then it is not going to be easy going.
One of the upsides to AH is that people can, if they have the desire to do it, put a map together. To get one approved is to take the skill to another level again. Aircraft skins, sounds etc. have been done by players with the desire and enthusiasm to get stuck in. Perhaps some feedback on what would be a good map with the current set of GVs & Aircraft would be useful, so that a builder might have at least some chance of devoting his/her time to a Map that is not met with scorn and critisim!