I'm afraid I don't get it, where is the red light supposed to show up? On the monitor? In the water around me? And how do I turn off my flashlight? None of the buttons works. I keep dying at the second dive but I don't understand what I'm doing wrong, the monster arrives out of nothing.
1.The creature lurks in the water, you need to listen using headphones. You'll then see it's red light. if you don't see it's red light you're safe.
2. there is no flashlight, everything is interactable on your tool belt. The event about turning off the light, there's a light bulb that is the only thing lit up you turn off.
3. Listening & paying attention to your surroundings is important.
Hope that clears it for ya! :)