Transcription: Swim to the bottom, pull the switch and surface. Swim up and take a breath. Then swim back into the tunnel and let the current carry you. Climb out of the water, draw your guns and blast the rodent. Pull the block in the corner, then climb onto it and jump to the wide ledge. Turn right and climb up. You should find yourself standing on a pillar. Run and jump to the ledge with the swinging blade. Grab the shotgun shot behind the blade and return to the pillar. Now turn towards the door and jump to it. You haven't seen him for a while. He's yellow, he runs away, and he's back. You will get to fi ...