The mission starts out with you on a cliffside. Follow the button prompts to swing the fulcrum and then swing yourself, sticking to the rock. Keep doing this until you get onto some land, which triggers a small scene. Walk over with your allies, then press the buttons to deploy your wingsuit. Steer the wingsuit to the markers and when you get through the tight space, hold the designated button to deploy your chute.
When you land, go up and watch the short scene, after which you'll be allowed to engage with the enemies. These enemies are cloaked, so make sure of the Millimeter Scanner on your weapon (default loadout) to pinpoint their locations. As you're taking out enemies, keep moving forward and checking your surroundings for more enemies.
Once you get to the large open area, pick off any enemies you can see and follow the wall on your left. You will come to a small room, where you can find an Intel. Carefully and slowly move through the next few sections, as there will be a lot of enemies, some of which will be cloaked. It can definitely be difficult to see, with the weather and all of the trees and other things blowing.
INFILTRATE THE FACILITY
After a lot of fighting, you'll eventually reach a stone door. Your allies will blow it open, which will lead to a research facility. Go inside the facility and when you reach the first hallway, an explosion will occur. Two ASDs will appear, as well as some regular enemies. Take them all out, then go left around the corner and into the room there, where you'll find the second Intel on the table.
Once the room is clear, go upstairs and to the left, where you'll find some more enemies in the next room. Keep pressing forward, taking out any other enemies in cover, then go down the stairs. An elevator will come up with more enemies, so kill them and then take the elevator.
When the elevator reached the bottom, you'll be surprised by another ASD and some more enemies. Take them all out, then continue through more rooms until you come to a large room. Note that there's a little locker here that you can open to activate a friendly ASD, which will help shortly. For now, go into the room on the right and open the container to let out Erik.
Erik is a scientist and promises to help you if you get him out of here, alive. As soon as this all happens, an ambush will come into the big room, so take cover and kill all of the enemies that show up. There's an Assault Shield that you can grab that can be used for cover, should you need it.
To progress, you will need to go to the room where you found Erik and use the console on the left side to open the door there. Once inside, a scene will play out, which results in Erik being shot and more enemies showing up. Backtrack to the previous room, killing anyone in your way, then go through the opening on the opposite side.
In this room, kill any enemies, then go straight and slightly to the right to find the third Intel on the desk. Go through the doorway on the left, following the path and eliminating any enemies in the way. Keep going this way until you eventually catch up with the extraction team, which is the end of the mission.
