Import the Assets
Game Setup and Lighting
Alarm Lights
Tag Management

Unity can get the GameObject reference(s) in scripts through using a Tag reference,use a script to manage these can minimize hand write errors.
Screen Fader

Control the game level's swtiching effect of the screen
Game Controller

Add a script to controlling the alarm status
CCTV Cameras
Laser Grids

Add the laser grids controller system to alarm systems.
Without bake.
Player Setup
Player Animator Controller
HashIDs

Use a hashIds script to store the references hashid of a animator,make it easy and more efficient to use in scripts.
Player Movement
Player Health
Camera Movement
The Key
Single Doors
Double Doors
The Lift
Enemy Setup
Enemy Animator Controller