(4) Peaceful option: Crossing by second part of the camp Deus Ex: HR Guide
Last update: 11 May 2016
If you start exploring the second part of the camp from a lower level (-4), move carefully to the entrance door #1. The only way in which you should be interested, is an air vent entrance located on the left (it is hidden behind boxes) #2. Wait for a perfect moment to enter the vent, when none of the guards can see you (nor the defensive turret if it was not disabled previously).
Now you can start exploring air vents. I suggest to leave them somewhere in the eastern part of the camp #1. Watch out for a single guard patrolling this area #2. You can stun or bypass him. You can also explore cells there.
Head east. It would be good to reach a door located in the south-eastern part of the hall #1, because you can bypass a laser barrier #2 this way. It is not possible, turn off the barrier by interaction with control panel or walk through the air vent (an entrance is hidden behind the large crate). Your goal is to reach the door leading to the southern part of the compound.
Warning! A description of further actions can be found in the description of Step 5 (Getting to the second elevator).
If you start exploring the second part of the camp from an upper level (-2), enter the control room and consider hacking into a nearby computer terminal (second security level) #1. You have to leave now. If you have extraordinary strength then it is best to move crates blocking the right passage #2. Otherwise you have to use the left passage.
Surrounding balconies are patrolled by four guards, but you have to recon two additional handicaps. First, not all balconies have facets so you have to be careful with pulling away corpses. Second, you can't be seen by any of two security cameras. Guards can be eliminated in any order, but make sure that no one sees you. A guard patrolling south-western part of balconies should be eliminated at the end.
Take your time and look around the area. Most important is to explore southern control room #1, where you'll find an EMP grenade among other things. You can also use password neuralhub again with the computer terminal #2, so you'll get control over two security cameras (of course only if your hacking skills are high enough).
In order to get to the actual mission goal you should use the door located in south-western part of the hall (screen above). It would allow you to bypass lower level completely, focusing only on getting to the elevator.
Warning! A description of further actions can be found in the description of Step 5 (Getting to the second elevator).