Great game!
Since you said you wanted feedback, here's 2 things I'd love to see in further updates:
1. Some sort of small link between the camera placements and camera buttons to make the system feel a little more intuitive. (For example, having corresponding numbers next to the cameras and buttons, or having a map of the facility next to the buttons)
2. Some critical reason to use the cameras during gameplay. (For example - maybe you can't see the Worker in the hallway with the light switch off, and if you turn the light on, he instakills you, so you have to keep track of him in the cameras to not die)
But other than that, no comments! ^^