Exactly.
No, here is how a Source FNaF would go:
2 teams; Security Guards (1 for every 4 players) and Animatronics (everyone else)
Guards look at cameras and close doors to protect themselves. If they survive, they win the round.
Animatronics can only move when not being observed, and even then can only move one room for every 30 seconds. They lose health for as much time as they are seen by the guards, and if they are stopped at a door they die. They win if they enter a guard's room. Each guard has two doors
but they don't have access to every security camera. Teamchat will be on by default and they will have to communicate to survive. The animatronics also have to work together to distract guards long enough to kill them. The power supply is multiplied by the amount of guards but is communal, although each security booth has a spare battery (10-60 seconds) that increases for the amount of animatronics they have "caught" since their last guard death.