I remember Light fighter . Swat fortress was good . Depot Glasgow. Stan Sheffield while optac had it. Tac house Chesterfield. Years ago in a little village local to meet is we used an old RAF building with accomodation kitchens, function room. Was used for fire training they ended up running it as a site themselves and also did games on the airfield. Was used as an off-road track and had the control tower in use too. Also used to use another derilict RAF building out in the sticks there's quite a few this way. Camp Sparta is one currently in operation which is good. So many good sites been and gone.