(9) Aggressive solution: Reaching room 802-11 Deus Ex: HR Guide
Last update: 11 May 2016
Map legend: 1 - Main corridor; 2 - Office room passage; 3 - Shafts exits; 4 - Southern door to the last corridor; 5 - Data processing room passage; 6 - Side room entrance; 7 - Fragile wall fragment; 8 - Northern door to the last corridor; 9 - Shaft passage leading to the last corridor.
Right after reaching the first level of the basement you should prepare EMP grenades, as the nearby corridors are likely to be patrolled by an enemy robot (screen above). The only exception is a situation when for some reasons the alarm isn't active here, though the robot would eventually appear after you attack the normal enemies.
Apart from the robot, you must also be ready for the need to eliminate a heavily armoured enemy #1. Don't let his get too close and shoot him from behind a safe cover. Afterwards head north, stopping only after reaching a new door #2.
The most obvious solution is using the northern door, though they unfortunately have a level 3 electronic lock #1. Opening it would however let you reach the last corridor #2 and avoid all other threats.
All other options imply choosing the eastern corridor #1. It leads to a Data Processing Area, occupied by two guards #2. Eliminating them might prove rather difficult, as the have the ability to use camouflage. Be very careful and use your augmentations as well.
Now you can choose which path you want to follow. The first option implies using the western door #1. After passing through one small room you would reach a fragile wall fragment #2. Successfully destroying it (requires the Punch Through Walls augmentation) would let you reach the last corridor.
If you can't punch through walls, choose the northern exit #1 and afterwards turn left. Ignore the locked door and take a look around for a ventilation shaft entrance #2 which will lead you to the last corridor.
All the paths described above eventually end up at the same spot, i.e. the corridor leading west (screen above), towards the Data Storage 802-11.
Head west, but be sure to check out the south storeroom #1. Take the heavy rifle, even if your gameplay style doesn't involve direct combat. The reason is quite simple, as in just a while you will have to fight with a new boss. Regenerate health and batteries, save your game, choose a good weapon and eventually try to open the marked door #2.
Reward: 1750 EXP.
Notice! The description of further actions can be found in Step 10 (Defeating Yelena Fedorova).