At the start of the night, use the cameras and find Springtrap. Make sure to seal the vent he's closest to. Try to make sure he goes into a variety of vents, as to avoid having them broken. If he reaches the window, play audio in 2 and try to get him back to 5. Then seal 13. He tends to be quite random. If he goes into a broken vent, reset the night. If he runs past the window, reset the night. Phantom Freddy is quite simply very easy to deal with. If he's coming from the right, play audio in cam 02. If he comes from the left, play audio on cam 01. Don't let him get to the opposite side or he'll attack you and increase your insanity. Phantom Chica is quite simple, just go to the camera she tells you a cupcake is on, although there can be a few problems with this. We'll get to that later. Phantom BB is also easy, when you find him, just wait until he laughs. If you do see Phantom Foxy, just flip the camera or maintenance panel, depending on which side he shows up on. Don't get attacked by him or your insanity will increase. When Phantom Puppet appears, wait for him to block your vision. Every bit of time you look at him, your insanity will increase, but he can't kill you due to insanity. Phantom Mangle is also easy to deal with, just look at him until he goes down. Once she goes down, you're safe. By the way, whenever she is in the office, your insanity will increase, although her insanity mechanic can't kill you.

Life isn't that simple... there are scenarios that mess with this strat. Lemme tell you how to deal with them.

Phantom Freddy & Phantom BB: This is quite simple, just play the audio on the side he is on and switch as fast as you can to avoid BB.

Phantom BB & Phantom Chica: If one of Chica's cupcakes appear on a camera Phantom BB is on when you switch there, wait for BB to disappear, then get the cupcake.

Phantom Foxy & Phantom Puppet: If Puppet appears as you're dealing with Foxy on the left, this is easy. Otherwise, you'll need to accept the extra insanity. Sorry :/

Springtrap (Vent) & Phantom Freddy: If Phantom Freddy is close to the opposite side, deal with him first, then deal with Springtrap.

Springtrap (Vent) & Phantom Chica: Deal with Springtrap first, then deal with Phantom Chica.

Winning run can be found here - https://www.youtube.com/watch?v=aJfoaAs1vLg