When you enter the third room (not counting the elevator room) you normally turn right and go through a door. Instead, turn left, throw a plasma grenade at the base of the purple crates, then quickly hop on top of them and jump at the ledge above. The grenade should propel you up onto the ledge. Proceed forward through the door in front of you and you will be at the flood room early. | When you enter the third room (not counting the elevator room) you normally turn right and go through a door. Instead, turn left, throw a plasma grenade at the base of the purple crates, then quickly hop on top of them and jump at the ledge above. The grenade should propel you up onto the ledge. Proceed forward through the door in front of you and you will be at the flood room early. |