Declassify Mission: Strong wind affects movement
Activate the declassify mission ahead if you want. Continue to the next room then swap your weapons if you want. Exit the room and head to the railings. There will be several locusts on the ground below so dig in and take them out. Enter the room to the right and go downstairs. Immediately turn around and look at the floor beside the stairs to find a COG tag.
The strong winds will be encountered by Kilo Squad once they leave the building so you may want to whittle down the enemy numbers before proceeding. Once you've cleared all enemies outside, proceed and head to the next building to the left. Depending on your game's enemy loadout, you'll encounter a couple of Grinders there or different set of locusts. Take them out then take the lift down to complete the section.