Now that you have a weapon, follow Psycho's squad across the deck. They'll lead you down a ramp to the next deck down and you'll see some shipping crates off to the left. There will be a body slumped over next to one of the crates and if you check it out, he'll have [Black Box 1] on his arm. Follow Psycho to the right and he'll lead you up the building in the distance. When you get to the top, he'll open a door for you and let you in.
Equip your silencer as you are instructed and after a moment Psycho will open the door into the next room. Activate your stealth and take out the guy to your left. Enter the next room by going out the door to the left of the man you just killed. You can follow this around a catwalk along the upper level. You'll move around the central lower area. There will be a couple of enemies in the middle and you can take them out with a silenced weapon if you like. As you get closer to your destination, make sure your stealth is activated before you spring and climb over the obstacles ahead. Get over them and head through the door to the left.
In this room, enter the vent to the left. Before you exit on the other side, activate camo. Climb up the stairs in the next room and into the room at the top. You'll find a guard in this room (perhaps behind the door). Take him out and then search the control panel in this room for [Data 1]. Make your way over to the checkpoint and let Psycho in. Follow Psycho until he whips out a bow for you.
Turn right and there is another piece of [Data 2] here on top of the machine at the top of the stairs. Head down the stairs and flip the switch by Psycho. Flip on your camo and you'll have your first chance to try out your bow. This fight is much like what you'll be facing in most of the game and it's more important to have an understanding of how to approach these than to have specific directions. The AI is pretty smart and may not always act the same way so thinking on your feet is a must.
Activate your visor and check the area for enemies. Each enemy will have a triangle over his head and if you highlight the triangle, this will mark them semi-permanently on your screen (the marker will not display if you get too far away). Mark off every target that you can see, any tactical items you can use (ammo, arrows, weapons or collectibles) and get ready to act.
There should be two enemies just outside the door and to the right. You can take them out pretty easily with a couple of quick shots from your bow. There is an upgrade that allows you to perform a stealth kill while cloaked but you likely don't have that yet so shooting them is better as you won't reveal yourself. Grab the arrows and then find a quiet spot to refill your energy. When it is recharged (should happen quickly), start climbing the structure.
During this fight, you will have some help from Psycho who, more than anything, will draw the enemies attention. This allows you a bit of leeway so you can slip up and not get crushed. As you start climbing and you get a free moment, reevaluate your targets with the visor because it is likely that a couple more have appeared that were previously out of range, particularly above you. Remember to also mark any arrows that you've used and haven't yet collected. Work your way through the enemies here and catch up with Psycho.
