To escape the second part of level three, you'll need to explore the various rooms connected to the main area and look for red buttons. Once you've found all three keys and unlocked the gate, a loud buzzer will go off and the entity will become more aggressive.
If working with teammates, whistling can be a helpful way to distract the Hound while others move or search. If it comes toward you, immediately move out of the way and lower yourself into a crouch to avoid being attacked. Each time that you open a drawer, sprint, pick up a key, or unlock a padlock, the entity will come running. The entity in this level, the Hound, is completely blind but reacts to even the slightest of sounds.
The main pieces of advice that we can offer are A) only run when absolutely necessary, and B) crouch as much as possible.
