Robert Knox gets easily scared - if you frighten him too much, he will start running in his chopper located on the roof. You can eliminate him before Sierra, after killing her, or even (in one case) kill them both simultaneously. Target's behavior:
- Robert shows up at the beginning of the game on the upper floor of Kronstadt building in the room with android (west side of the building).
- After a while, he goes to the upper floor (suite). None of the outfits grants you complete safety in this building, however, the Kronstadt suit gives you the biggest advantage (a security guard in the claret suit).
- Robert passes two room on the suite level, and then he returns to the lower level. In order to kill him in another way, you have to lure him out of there (by opening the food cart outside, on the west side of the building): when Robert sees from his balcony that you opened the food cart, he will decide to go to you outside. The exact procedure has been described under The Munchies story mission.
There are 8 key challenges available that are connected with killing him. The list below shows the main ways to eliminate Robert Knox during the Miami (The Finish Line) mission.
- Paranoid Android
- The Florida Diet
- The Man And The Sea
- External Combustion Engine
- Ocular Administration
- Under The Sea
- The Message
- The Tree Falls On The Apple
This challenge regards the story mission The Munchies (detailed information on this challenge can be found in the mission description). Kill Robert using the android - when presenting as Ted Mendez, show the Knox photo to the android. You can find the photo in the nearby Conference Room and in many different places on the upper floor and the entire game area.
The Florida Diet
This challenge regards The Munchies story mission (more details on it can be found in the description of that mission). Kill Robert by serving him poisoned food at Florida Man's food-truck. This mission does not result in target's death, rather with poisoning him with rat poison.
The Man And The Sea
This challenge is connected with The Munchies story mission (more details can be found in the description of the mission). Kill Robert using the fish trophy.
- You do not have to acquire the outfit nor keys from Florida Man if you have the dongle with you.
- Do not serve food from the food cart - the fact that it is open will lure Robert, however, after he's full he will go next to the pier for another snack.
- After he walks around the neighborhood for a while, he will go to the pier and start talking on his phone. Finally, he will sit on a bench...
- Draw your pistol and shoot the opposite side of the large fish trophy, that will hit Robert sending him to water.
External Combustion Engine
This challenge is connected with the Turbo Charged story mission (details on it can be found in the description of the mission). Kill Robert by blowing up the Kronstadt demo car - when sabotaging the engine, add the Kronstadt Octane Afterburner to it.
Kill Robert Knox by poisoning his eye drops.
- Acquire the lethal poison from the Emergency Bay dressing room and bring it with you to the area of the mission.
- Go to the top floor of the Kronstadt building (suite).
- Locate the bathroom - between the washbasins there are Robert's eye drops - poison them.
- Go to Robert's office on the same floor (the room with scientists in white aprons and a bodyguard). You will see the A/C control on the wall - use it.
- When Robert comes to this floor and walk through the office he will feel itching and the need to use the drops - we all know how this will end...
Under The Sea
Kill Robert using the shark you find in the aquarium. In order to lure Robert from the upper floor, it is best to open the Florida Man food truck (as described in the challenges above). This is when Robert will walk past closest to the aquarium, behind the wall to his left.
- Turn the tap in the basin to draw his attention near the water tank door.
- Install e.g. the electronic lure inside the aquarium to lure the target beneath the shark statue hanging down from the ceiling.
- Shoot the shark to make it fall on Robert's head.
Hint: It might not be easy to lure Robert towards the aquarium. If you knock him out and then drag under the shart, the challenge will be completed as well.
The dongle in Robert's office.
Push Robert off the roof. To complete this assignment, go to the suite at the top of the Kronstadt building. Locate Robert's office (with the scientists), and find the electric access dongle on the desk.
Now go to the diagonally opposite part of the building: the balcony with a small document storeroom. The is an antenna and a laptop connected to it. Hack the laptop using the key.
Push the target while he's leaning from the edge of the balcony.
Wait for Robert, who will come to fix the malfunction. When he starts leaning over the edge of the roof to check the antenna, kick him off the balcony...
The Tree Falls On The Apple
Kill Robert and Sierra simultaneously. You can combine this challenge with Message and Communication Breakdown that are a part of this assignment. Hack the antenna as described above under the Message challenge and wait for Robert.
Robert must fall on Sierra's car to complete this challenge.
This time, you also have to kick him off the roof, however, only when you see Sierra's car on the horizon. It is a good idea to save the game prior to this moment - Robert has to fall exactly on Sierra's car (a small error margin is included).