Splinter Cell: Chaos Theory Walkthrough - Lighthouse

Chaos Theory Walkthrough Screenshot 1. This walkthrough is played at the "Hard" difficulty level, on the European PC version. (My online retailer had it misidentified as the US version. Any major differences? Let me know.)

Chaos Theory Walkthrough Screenshot 2. The ability to choose your loadout is new to the Splinter Cell series. Here, I choose the "Stealth" loadout which maximizes airfoil and sticky rounds.

Chaos Theory Walkthrough Screenshot 3. The atmospherics in this opening area are superb, even if Sam does look as though he's made of vinyl.

Chaos Theory Walkthrough Screenshot 4. Take a look around, although you can't explore far. Here's the way out -- climb up the rock face as indicated. Activate your night vision to better see in the darkness.

Chaos Theory Walkthrough Screenshot 5. Climb into the cave and then choose "Enter Crawl Space" once you see this luminous growth on the cave wall. Gunfire is heard and then Lambert checks in.

Chaos Theory Walkthrough Screenshot 6. Choose "Exit Front" and then climb this succession of ledges. Bats flutter at the top.

Chaos Theory Walkthrough Screenshot 7. Two patrols are also up here. You can pick up a nearby rock and throw it to make a distraction, or just wait for this guard to cross the bridge, then grab him from behind. Interrogate him to learn of nearby supplies. Cross the bridge and head right. (Alternately, you can take a path to the left.)

Chaos Theory Walkthrough Screenshot 8. Again, patience is your best weapon. Wait for the patrol to turn his back to you then grab him from behind.

Chaos Theory Walkthrough Screenshot 9. Right-click knocks him unconscious, left-click delivers a lethal blow. (For those going for a high mission rating, you'll want to right-click.) Lambert instructs you to scan the crates for barcodes.

Chaos Theory Walkthrough Screenshot 10. Activate your EEV and find the first crate here on the right.

Chaos Theory Walkthrough Screenshot 11. This generator is against the opposite wall. Use the switch to turn off the lights temporarily, or pierce the fuel tank to take it out of commission permanently. Descend the stairway to the left of the generator.

Chaos Theory Walkthrough Screenshot 12. Wait in ambush for this patrol then grab him from behind. An interrogation reveals that Morgenholt is being torched nearby.

Chaos Theory Walkthrough Screenshot 13. Around the corner is another generator and the second crate you need to scan with your EEV.

Chaos Theory Walkthrough Screenshot 14. Return upstairs then continue up this second flight.

Chaos Theory Walkthrough Screenshot 15. Through this door you witness Morgenholt's torture. A medkit is on the wall to your right.

Chaos Theory Walkthrough Screenshot 16. Quietly descend below. This is a good place to play shadow puppet.

Chaos Theory Walkthrough Screenshot 17. Morgenholt is fried. Hold back here for this patrol to approach. Grab him once he turns around. Interrogation yields nothing.

Chaos Theory Walkthrough Screenshot 18. Approach Morgenholt to trigger a conversation with Lambert. Knock out the guard on the right. You can have Sam uncuff Morgenholt's body if you like.

Chaos Theory Walkthrough Screenshot 19. Ascend the stairway ahead and receive an update from Grimsdottir.

Chaos Theory Walkthrough Screenshot 20. Pick the lock on the door then turn left here.

Chaos Theory Walkthrough Screenshot 21. Approach the back of this tent and choose the option "Cut Material."

Chaos Theory Walkthrough Screenshot 22. Interrogate the man inside to learn that Lacerda has left.

Chaos Theory Walkthrough Screenshot 23. Knock him out and hide the body out of site before repeating the tactic on this neighboring tent.

Chaos Theory Walkthrough Screenshot 24. Scan crate #3 with your EEV.

Chaos Theory Walkthrough Screenshot 25. Time your advance through this well-lit doorway to avoid being spotted by the patrols.

Chaos Theory Walkthrough Screenshot 26. Emerge from the hallway then hug this right wall around to the crates ahead. Before reaching the crates, look through the indicated break in the wall to scan crate #4 (inset). Slip behind the crates (and the patrol) to reach the doorway ahead-left. Switching off the lights alerts the guards and is unnecessary.

Chaos Theory Walkthrough Screenshot 27. Ascend the stairs then slip left past these two guards.

Chaos Theory Walkthrough Screenshot 28. The two patrols are still below and you need to cross this bridge. Fire a sticky camera and make a noise diversion to distract the guards.

Chaos Theory Walkthrough Screenshot 29. Slip across while they investigate.

Chaos Theory Walkthrough Screenshot 30. Another guard is across the bridge. He's not dangerous so long as you keep quiet. If you like, you can interrogate him to learn that they have been hired - by someone.

Chaos Theory Walkthrough Screenshot 31. Access this computer to complete your objective.

Chaos Theory Walkthrough Screenshot 32. Read the emails for some background.

Chaos Theory Walkthrough Screenshot 33. Keep left to find the exit. Sneak down these stairs to the left. Listen to the guards' conversation and your notes are updated -- the sound of thunder can hide noises.

Chaos Theory Walkthrough Screenshot 34. Once at the bottom of the stairs, hook right to spot the fifth and final crate.

Chaos Theory Walkthrough Screenshot 35. Carefully descend the stairs. A third guard is in this room on the right, clearing an opening in the wall. This is one (cool but sloppy) way forward -- shoot the blowtorch to finish the job for him, then follow a zip line to the lighthouse.

Chaos Theory Walkthrough Screenshot 36. Alternately, follow the stairs to a path at the bottom. Hold at this corner and fire a sticky camera behind the guard.

Chaos Theory Walkthrough Screenshot 37. Make noise with the camera to get his attention then gas him.

Chaos Theory Walkthrough Screenshot 38. Repeat on this guard at the base of the lighthouse, this time firing the sticky camera at the ground near his feat. Note the zip line to the right of the bright light -- this is where it will deposit you should you choose that route.

Chaos Theory Walkthrough Screenshot 39. Here's the view from the camera. Look up and fire the gas to put him to sleep.

Chaos Theory Walkthrough Screenshot 40. Walk around to the lighthouse door and slip your optic cable beneath. Your objectives are updated.

Chaos Theory Walkthrough Screenshot 41. Stealthily enter the lighthouse and interrogate the radio operator. Learn that Lacerda is aboard the Maria Narcissa. Ascend the stairs -- you'll find a medkit on the way up. Update: Michael Lagle writes, "After you interrogate the radio operator in the lighthouse, shoot the radio, and Grim will complement you on your thought process...they can't alert other cells that they've been hit. When you complete the mission, it will show up as your bonus objective on the bottom of the objectives screen."

Chaos Theory Walkthrough Screenshot 42. Climb this ladder once you reach the top.

Chaos Theory Walkthrough Screenshot 43. Look around before popping up from the ladder; this guard patrols the walkway. If you're going non-lethal, my preference is to drop him with an airfoil round while he is watching the storm.

Chaos Theory Walkthrough Screenshot 44. The rest of you are in for a real treat. Climb over the railing (look down for a great view) and mantle along the ledge to the guard. Select "Grab Character" and...

Chaos Theory Walkthrough Screenshot 45. ...send him flying!

Chaos Theory Walkthrough Screenshot 46. Here's the switch for the light. (You can throw this switch before taking out the guard, but he'll just turn it back on.)

Chaos Theory Walkthrough Screenshot 47. Step onto the walkway and choose "Call Extraction" to end the mission.