MR777
Went to Monino when visiting Moscow in 2002. The agency, that gave me a guide for the duration, organised the trip to the museum. Excellent place. Be prepared to be personally welcomed by the commandant, taken to his office and offered the opportunity to buy his guide book, which actually, is worth having.
You'll get a museum guide who may well give you the brief of the great patriotic war, etc. He will then take you outside to show you the real exhibits. With me he rushed this a bit so when he finished and seemed to be moving to the exit I asked to spend some time wandering alone. No problem. So, spent a wonderful hour or so freely wandering around those icons of the cold war.
Enjoy
Foxile