Some additional tips, since this is a good post:
- Freddy is 100% predictable, she always moves from the stage, to bathrooms, to main room, to backstage, to closet, to kitchen. If you track how many laughs you hear, you don't need to keep checking the kitchen.
- Freddy can't attack you at all if your camera is on the kitchen, so you don't need to close the right door. If you want to check on Foxy's status, then you'll need to close the right door, flip the camera up, glance at the Cove, put it back on the kitchen and then you can open the right door again.
- On 4/20, you never need the door lights, ever. Bonnie/Chica's footsteps are panned so you can hear when they arrive (with decent headphones), and they ALWAYS leave after a few seconds since they can't fail movement opportunities. I just close the door, wait ~4 seconds and open the door.
- Never let Foxy attack without seeing her run in the hallway. Even if you close the door in time she'll drain over 20% power.