Thank you!
Basically in terms of gameplay you need to switch between the tunnels that aren’t protected by a flare, and listen for if one of them is going to make a sound, you can hear it in the video when I stop and start staring into a tunnel, you need to stay on that tunnel until the sound is fully gone, otherwise it will still attack.
You can also use a flare to your advantage if it becomes difficult to manage all 3 tunnels.