Adam Jensen will land on the rooftop from the heli-carrier. Go forward to the North and turn to the East. You can also loot the corpse of the Augmented Construction Worker. They have a credit chip on him that you can collect. Jump off the ledge and immediately turn around.
Having turned around, look for the vent opening in front of you. Crouch and head inside it.
Inside here you will find another Augmented Construction Worker corpse with some loot on it and a Triangle Code.
Head out of the grated area and proceed forward to the East then North. Go on through the opening in the vent fan in front of you by crouching again.
Go forward. Look to the right to find the next Vent Cover that you can open. Do so and go through it to the first destructible vent. Press the prompted button to destroy the covering and let you continue forward.
Exit the vent shaft, turn to the North and go past the stationary fan. Start going up the ladder in front of you. As you, stop at the first walkway. Look to the left and you will see another Augmented Construction Worker's corpse. Loot the body to find a Pocket Secretary. This contains a door access code that will be very helpful later on in this mission. Finish climbing up on the ladder.
Turn right at the top of the ladder. You will see numerous Heavy Plastic Crates blocking your way. Approach and interact with any of them to move them out of your way. Head on through the doorway once one or two of those crates are out of the way.
On the other side, jump up onto the ledge in front of you and then the one after it. Go forward and drop through the opening ahead on the left-hand side.
Drop down to the floor on the other side. You will have some prompts to follow telling you about how to hot-key one of your available augments. Follow the prompts for the control scheme that you have active and select Smart Vision and key to one of the hot key slots. Be sure to wander the room a little to check the Construction Worker Corpses to see if they have any credit chips. Now, activate smart vision to locate the structural weakness in the Eastern wall of this room. Go over to it and interact with it to have Jensen break it down.
Jump through the hole in the wall you just made. Go to the Southeast and approach the highlighted keypad. It has no power and for you to proceed forward, you will need to power it up.
- Infiltrate the building
- Restore power to the keypad
- Seal off access to the Atrium
- Jam the signal boost (secondary)