Search the laboratory | Chapter 13 - With the Tide DI Riptide Guide
Last update: 11 May 2016
Before you head for the place marked by the game, you should get to know this place - here the final battle of the game takes place. I recommend to pick up all med-kits and remember where all ammo crates lies and interactive valves are (using the last ones make flames appear).
After checking the laboratory, head for stairs in the far end of this room. You find a corpse nearby, at which you have to look closer.
Turn around and go to the next green area. Here you have to find a terminal (screen above).
At the very end, approach mutated bodies lying on the tables and examine one of them.
Make sure one more time that you're prepared for the battle and approach the door at the end of laboratory. You'll see a long and interesting cut scene about meeting with Harlow.