When I was working in Italy, I hooked up with a great bunch of guys from the GMM (Gruppo Modellistico Monzese) from Monza, a suburb of Milan.
They have a very nice field in Monza and they are quite enthusiastic regarding C/L flying.
You should be able to get more information from two fellows on Stunt Hanger: Massimo Semoli and/or Massimo Rimoldi.
They are both extremely competent modellers and speak perfect English.
Semoli was, as I recall, an FIA official of some sort.
By the way, why are you visiting Milan?
Bob Z.
ps - for what it's worth, I went to high school in Milan. It is a magnificent city, steeped in history. It's home to the most famous opera house, La Scala.
You might also visit a neighborhood church called Chiesa Santa Maria Della Grazia (spelling?). In it, you'll find an interesting fresco by Leonardo da Vinci - the last supper.