(5) Aggressive solution: Getting inside the port warehouse Deus Ex: HR Guide
Last update: 11 May 2016
Map legend: 1 - Main entrance to the warehouse; 2 - Ladder; 3 - Stairs leading to the backside balconies; 4 - Main entrance to warehouse offices; 5 - Ladder.
Exit the tool shed and focus on securing the northern part of the port (screen above). There should be only few enemies left but it doesn't mean that you do not have to be hurry.
Now you can focus on getting inside the large port warehouse. The most obvious solution is to enter via the reception room on level 2 #1. The electronic lock you'll find there has first security level, but you also can use a combination 4589 (obtained from one of the guards).
If you do not want to choose this way, then take a closer look at the west wall of the large warehouse, finding a ladder there #1. Watch out for the security camera, and once you get to the small roof fragment, approach another ladder. You could go to the eastern door now #2. It has a third security level lock, but you can use a combination 6555.
But the most interesting option is to use the last, northern ladder #1, which leads to the top part of the port warehouse roof. Once you get there you would have to find a breakable part of the glass roof #2.
After breaking the window on the roof you can act in two ways. A first variant is to shoot at enemies below #1, which would be probably vulnerable to your attacks. Another option is to jump into the warehouse using a hole you just made #2, but you would need the Icarus Landing System augmentation to do that. But first you should clear the warehouse a little bit of enemies, and during your flight hold left mouse button, making the landing a powerful strike which stuns nearby guards.
Note! A description of further actions can be found in the description of Step 6 (Getting to the administrator Wang's office).