(1) Peaceful solution: Getting out of the construction site Deus Ex: HR Guide
Last update: 11 May 2016
Warning! Events at the construction site may have two different endings. If you try hard, you'll manage to save Malik, who is trapped in a shot down VTOL. Be warned though, because this may be very difficult, especially if you do not want to kill anyone. Additionally, it would be good to equip any paralyzing weapon (preferably a tranquilizer rifle) and EMP grenades. If you don't try hard or ignore the possibility to save Malik's life, she won't survive a massive attack of enemy forces. In this situation, the best solution is silently getting to the rear of the construction site, in order to reach out the elevator there.
This quests starts not far from the crash site and if you want to save Malik, you have to hurry, because her damaged VTOL will not stand the attack of surrounding enemies for too long. Head southwest, running towards the right building #1. Once you're inside, head south, jumping over damaged wall and attacking first enemy standing near #2. It is best to neutralize your opponents in melee combat, although a paralyzing weapon can also be helpful (take one with fast reload time and effective foe a short distance).
Again head south and then turn east. Try now to eliminate heavily armored enemy, who is walking towards the downed helicopter #1. Another soldier should stand near the west building, which you've passed through a moment before #2.
Be sure to hide now using one of walls in the west building, and that's because in few moments an enemy combat machine will be dropped onto the battlefield. It would be best to use EMP grenades to destroy it (screen above), but it will probably need to toss two or three of them.
Right after the destruction of the robot, run north (towards Malik's helicopter) and quickly deal with another heavily armored enemy #1. Now equip a tranquilizer rifle or another weapon of that type, which is effective from a long distance. Start shooting at snipers on upper floors of the west building #2 - the one you've passed through before.
After the initial elimination of enemies, head towards the so far ignored south-east building. Stun one guard who patrols lower level #1, and then go back and in the same way deal with another sniper #2. Their attacks will not damage the helicopter significantly, so you can track down next targets with no rush.
Dealing with all enemies leads to the end of the battle #1. Malik will thank you for your help and fly away from this place in damaged helicopter #2.
If you have heard during the battle a farewell message from Malik, it means that you didn't save your friend. In this situation you can repeat the whole battle or continue your actions on the construction site. In the latter case the best idea would be to get to the elevators unnoticed and this is also a best solution if you do not plan to help Malik. It would be good to start going towards the west building #1. Locate a small hole in the western wall, through which you can go #2.
Now you must carefully walk past the local guard #1, who is busy shooting at the flying vehicle. Head south, but right after you pass by the stairs, turn east reaching the elevator #2.
If you have such opportunity it would be good to look around the construction site before leaving it. First of all examine all enemies' bodies and upper balconies, which can be reached using the stairs and ladders. Additionally I would advise to take a closer look at the east part of this location #1. With an EMP Shielding augmentation you can go through the area with electrical discharges, finding a small tunnel #2. There are grenades hidden in a small room.
Whichever method of you actions you choose, you have to reach the cargo lift #1. If your opponents are still alive, you have to be hurry not to be noticed by them. Otherwise you do not have to hurry. Call the elevator and wait until it takes you to the upper level. Once you're there head towards the only visible door #2. It will take you to the well known Kuaigan district.
Reward: 1000 experience points.
Note! A description of further actions can be found in the description of Step 2 (Passing through the Kuaigan district).