Section 1 - Amador Park
Clear the mansion's courtyard then continue to the mansion's second exit. Before leaving and ending the section, grab the COG tag beside the stairs near the balcony.
Section 2 - Magadha Villa
Head to the exit but before completing the section, continue past your team to see a COG tag skull. The COG tag is right in front of it, beside the electric post.
Section 3 - Soleno Villa
N. Grachev, PVT, East Timgad
Once you've reached the street, continue ahead, past the corner to find a COG tag skull on the far wall. The COG tag is located between some cars to the right. Regroup with your team to complete the section.
Section 4 - Windward Way
K. Axford, PVT, Vonner Bay
You'll eventually reach a closed checkpoint gate ahead. A couple of beastriders will burst through so kill them and proceed forth. You'll find a COG tag skull ahead. To its right lies a blue container van. The COG tag is located beside that container van's side.
Section 5 - Risea Estate
J. Carlson, CPT, Halvo Bay
After clearing the area, your team will regroup to the exit. Before completing the section, enter the fiery garage by following the ramp past the exit. You find the COG tag beside the shelf on the left corner.
Section 6 - Guest Bungalows
K. Sutton, PVT, New Sherrith
Go to the mansion where the mortar-wielding locust is dealt with earlier and you'll find the COG skull behind some crates leading to a corridor, in ground level. Go inside and you'll find the COG tag on a drawer to the right.
Section 7 - Elliott's Mansion
Once you get the objective to defend the bot as it is trying to reboot the system, you'll be in a large hall where the locusts will come barging in. There's a COG tag in the balcony on the other side. Check the corner upstairs, above the COG skull in the first floor. This is the same balcony where the Oneshot locusts camp and take their potshots.