Indeed. There used to be a generator for electric lights and remote control to start fires in trenches, to make German bombers drop their loads on the hill instead of on Swindon's railway works. And a couple of blokes hoping desperately that the bunker didn't get a direct hit (obviously, it didn't).
There aren't many of these bunkers left and they're not listed or anything. In fact, there isn't much available history on them at all and the guys who manned them are probably all dead by now.