I: The Museum of Military Glory (Baird’s Testimony)
- Old Town
From the level exit, turn around to see the COG spray behind a tree in a small park. The COG tag is to the right near some trashcans
- Riverwalk District
After surviving the final wave of Boomers at the end of the level, run down the stairs to the right
- Museum Gardens
At the very beginning of the level, chainsaw through the door and look for the red COG spray on a building to the right. Follow the alleyway past some Frag grenades to find the COG Tag collectible.
- Great Hall
In the water at the base of the statue
- Kashkur Wing
The COG tag is directly underneath the mounted machine gun at the top of the small stairs.
- East Wing
The COG tag is directly to the right of the exit door.
After leaving the first section with the serapid eggs, follow the left wall to find the red COG spray. The COG tag is to the right of the spray.
Follow the edge of the large crater to find the collectible in the Vaults.
II: Halvo Bay Military Academy (Sofia’s Testimony)
- Enfield Bridge
Near the mounted gun at the middle of the bridge.
As soon as you enter the school, go left into the office to find the COG tag.
- R&D Labs
During the first section, you will see a few grubs bust through some windows on the right wall. The COG tag is in that room.
- Monroe Commons
Behind the desk in room 24 on the right side
In the very first section of the level, the COG tag is in a small room at the back right of the main room. NOTE: there is a second COG tag you can pick up during this level (at the very end near the exit), but the second COG tag counts towards the next level, Crash Site.
- Crash Site
At the very top of the stairs on the right side (facing up). You can pick this COG tag up at the very end of the previous level, Atrium.
III: Seahorse Hills (Paduk’s Testimony)
- Amador Park
Near the very end of the level, you will run up a few short sets of stairs. Look for the COG tag at the top of the short stairs; there’s a slightly longer set of stairs near the COG tag that has an Onyx ammo case.
- Magadha Villa
Near the exit of the level, run past the door to continue, and the COG tag is on the left behind a small column.
- Soleno Villa
The COG Tag is near the end of the level, out on the street you will see a few cars piled up and a fire hydrant spewing water.
- Windward Way
After being forced to vault over a small ramp, you straight ahead is a blue shipping container with an ammo box inside. To the right of the shipping container is the COG tag.
- Risea Estate
During the final fight against the mortar teams, you will see a small driveway down a ramp into a garage. The COG tag is on the left wall in the garage.
- Guest Bungalows
Underneath the mortar team is a small room with some frag grenades and the level’s COG tags.
- Elliott’s Mansion
During the section where you have to protect the bot from attackers, go to the back balcony on the upper floor. Facing out, the COG tag is on the right side.
IV: Onyx Point (Cole’s Testimony)
To the right of the exit, you will see a red COG spray on the wall. Follow the path to the right and you will find the collectible near an Onyx ammo case.
- Container Terminal
After killing everybody with the mech, look to the right of the exit door and up a small set of stairs you will see a blood smear on the ground leading to a door. To the left of the door is the collectible.
- Motor Pool
Hug the left wall from the start of the level, and you will make your way up a small hill. Do a 180 and the collectible is on the ground.
- The Cliffs
Leave the garage at the very start of the level and you will see a small set of stairs on the left. At the top of the stairs is the COG tag.
- Central Base
At the beginning of the level, you will drop down and see a ton of locusts swarming below. Stay up top and in the room to the right near the bottom of a small set of stairs is the collectible.
- Central Control
From the start of the level, go forward up a small set of stairs and turn right 180 degrees. Continue straight down a small hallway and the collectible is on the ground in the corner.
Walk forward until you see the DECLASSIFY challenge marker on the wall. The collectible is directly behind you.
V: Downtown Halvo Bay (Baird’s Testimony)
- Wharf District
After kicking through the gate near the beginning of the level, turn left and you will see a red COG spray on the wall. The COG tag collectible is on the ground to the left of the spway.
- Parade Grounds
On the right side of the street, there’s a set of stairs with some ammo at the top. Turn right at the top of the first set of stairs and the collectible is overlooking the parade. This is before opening the first gate when the tickers come running underneath.
- Upper State Street
After the second standoff, while facing downhill, drop down and go to your right and the collectible COG tag is in the rubble.
- State Street Rooftops
Before the ramp up to the rooftop where the first Reaver lands, there’s a platform along the building on the left (facing the reaver), above the large hole in the ground, with a collectible.
- First Avenue Rooftops
As soon as the level starts, walk forward and to your left. You will hear a scratchy radio with a distress call. The collectible is adjacent to the radio.
- Museum Square Rooftops
Before finishing the level, run around the rooftop and look for a red COG spray high on a wall, near the base of the stairs on the opposite side of the rooftops from the Continue spot. The COG tag is near an Onyx ammo case. NOTE: This collectible can also be picked up during the next level Overlook, but will only count as the collectible for the level Museum Square Rooftops.
Near the end of the first wave of enemies, some doors will open to let more enemies into the fight. You can only get to the collectible after the enemies open the door for you. It is the second set of doors that the enemies open; near the collectible from the previous chapter. Note that as soon as you finish the second wave of enemies is dead, the level automatically finishes and you will not be given a chance to casually search for the collectible.
VI: The Courthouse (Present)
- Grand Courtroom
The collectible is at the top of the second pedastel surrounding the courtroom.
- Halls of Judgment
After killing all the flying Nemacyst, you will enter a large room with a balcony on the left side. The collectible is on the left side of the balcony (facing out).
If you’re facing the Continue door, turn around and the collectible is in the corner.
- North Entrance
The collectible is at the top of the stairs and near a mounted gun in the room with the two large staircases.
- Main Entrance
Fight your way down the staircases and through the dogs, and in the room on the right is the collectible.
- Great Staircase
Fight your way down the Great Staircase and run past the Continue point and the collectible is up a small set of stairs then to the left.
- Plaza for the Tyran Dead
Run around the outside circle of the final boss arena, and you will see a red COG spray on the wall. The final COG tag collectible is inches from the spray.
Far into the level, you will come to an outside fight that starts with some mortar teams below you near some large blue drained fountains. Run down the stairs, turn around and the COG tag is underneath where you first entered.
- Anybody Home?
From the start of the level, hug the left wall and you will eventually come to a garage with a few cars strewn about. Behind the cars near some dead bodies is the collectible.
- Dead End
After getting the gas mask and making your way through the immulsion, you will make your way up some stairs and be directed to open a garage door. BEFORE lifting the garage door, there is an optional door you can open to the left. Kick that door open, and in the back corner of the room is the collectible.
- One Step Closer
While running from building to building avoiding the OneShot snipers, you will come to a building on the right (facing the snipers) that has a large, bright lamp in it, obscuring a shortcut and stairs leading down. The collectible is near the bottom of the stairs.
- Straight to the Top
- A Few Complaints
After turning on the first Gas valve in the back of the kitchen, the final COG tag is in the back area.