Chapter 2 The Descendant Guide
Last update: 11 May 2016
After you access the ARK's main part, follow the corridor all the way to the end, where you will find a red door.
After you walk into the next section, approach the next door. Start mashing the key shown on the screen, give the turning wheel a spin and enter.
After you walk into the next part of the ARK, follow the corridor halfway, and turn left halfway through, where you will spot another door. Thanks to the door, you will walk into the small antechamber shown in the screenshot, where you'll find another door.
After you cut to Mia, you will have to check out the computer on the right side of the room. Come closer to it and interact with it.
Your task will be to check out the water heater in the bottom part of the ARK. Exit the room through the back door (shown in the above screenshot) and go to the main corridor.
After you reach deeper into the corridor, you will find a plaque with Water Heating Room written on it. Take the door and enter the room.