(5) Peaceful option: Securing the assembly lab - Lab 1 Deus Ex: HR Guide
Last update: 11 May 2016
Warning! If you want to avoid killing or even stunning your opponents for all costs, scroll down to description of Step 6 (Saving hostages) or Step 7 (Getting to the assembly lab - Lab 2).
There are four opponents in Lab 1 room. A guy walking between left and right stairs should be eliminated first (screen above). I suggest attacking him from a distance and putting his corpse by the table - only this way guaranties that no one will see it. It is worth noting that if hostages are still alive, terrorists will be discussing their situation. That will give you more time to eliminate an alone opponent patrolling this area and to hide his corpse.
Wait for a good moment and approach a place, where first terrorist's corpse lies #1. Notice, that another opponent stops on the right side #2 and this is a perfect moment to neutralize him. Same as previously, you have to do it when other terrorists can't see you. After this pull away his corpse.
There are two more opponents left and in order to increase your chances it is worth move inwards. First kill the enemy who walks #1 and then the one who stands by the wall #2.
Be sure to examine the corpse of third (in order) eliminated terrorist, because he got a PDA. Read its contents being in a journal menu #1 and you'll learn that the combination to disarm the bomb is 1505. Explore the area in order to find stun gun ammo and then head to the northern storage room (Storage Room 01). Attack by surprise a terrorist which is inside #2 and then explore the room.