#5 - Rooke: Three for All | Walkthrough Gunpoint Guide
Last update: 11 May 2016
Now it's time for one of the harder missions. This time you will have to hack three main computers, and there's four Normal Guards in the building.
Jump on the first floor where the doors are opened and use the staircase to get on the second floor. Jump on the Normal Guard that is standing near the window on the left. It will make a bit of noise and the Normal Guard from the second room will run out to see what's happening, but he will start circling the room after a few seconds. Use that to your advantage and knock him out. Now get to the right end of the floor and hack the first main computer.
Now go into the Crosslink Mode and disconnect the light switch on the first floor (marked as number 1 on the picture above) and the light switch on the second floor connect to the lamp on the first floor (marked as number 2 on the picture above). Then press the light switch that you've just connected to the lamp, which will make the light on the first floor go off. The Normal Guard will try to switch it back on, but to no avail. Take the elevator to get on the first floor (remember that the Normal Guard can't see you in the darkness) and get rid of him. Now you can hack the main computer.
Now you have to do something similar again. The light switch marked as number 1 on the picture above connects to the lamp on the floor below, and the light switch marked as number 2 has to be disconnected from the same lamp. The Normal Guard will not be able to see you, so you can take the elevator down and take him out the same way you did with the other one. Hack the last main computer and go back on the first floor.
Connect the light switch on the left side of the elevator with the closed door (like on the picture above), open them by pressing the light switch and run to the exit.