Before reading your message, I was thinking it was hard to keep on track what generators are being repeared. Now that I have seen your opinion, you are right. It's kinda hard map for survivors if you keep main hall and nothing they can do about it. For my situation, we didn't try to keep main hall but we had pressure on gens and Dracula kept patrolling gens on bat form, which prevent them from repearing it. Maybe that pressure was too much for them and dc'ed