So far I have modeled the Terminal 1 and the tower.
this is one of my first modeled airport so ......
here are 2 previews:
The Terminal 1 + tower

The tower:

Here is are the blender files/textures/and ufo-exports all in one.
http://brisa.homelinux.net/fgfs/malpensa.tar.gz
should I submit to the scenery already ?
notice:
1) I have found that in the Airport jetway models there is a disturbing object, it looks like an export error to me. I am speaking about:
* Models/Airport/jetway-a320-ba.xml
* Models/Airport/jetway-737-ba.xml
* Models/Airport/jetway-747-ba.xml
they all have an object near where they attach to the airport body, this object is flying in the air alone some meter away.
For next releases I am planning to add:
* Terminal 2
* some more airport objects (such has fixed aircraft/cars and stuff)
* ground network with scheduled flights