Here's a night 4 map since i already did the other 3 nights
Night 4 is probably the second easiest just run straight into the bathroom and then tap Frenni to clear the first two objectives, after that just run into Fexa and then crouch against the exit door.
Frenni and Fexa will walk by the exit door and Frenni may run and scream at you but in my experience they don't seem to be able to actually get into the little exit safe zone and will just walk away after a second
Theres no night 5 or ending and Frenni has 2 animations that I've seen after getting caught.