Gears of War: Judgment has a total of
- 48 COG Tags
- 42 Declassified Missions
They are spread within all 7 chapters of the main story and upon collecting all of them you will unlock 6 achievements worth 105

, as follows:
Never Forgotten - 10 
Recovered 10 COG Tags during the Campaign
Veteran Remembrance - 10 
Recovered 25 COG Tags during the Campaign
Respect for the Fallen - 20 
Recovered all 48 COG Tags during the Campaign
Challenge Accepted - 5 
Completed your first Declassified mission
Never Give Up - 10 
Completed at least 20 Declassified missions
Quality Soldiering - 50 
Completed all Declassified missions
Notes:- Video Playlist can be found HERE
- It is recommended that you complete all declassified missions as you go through the game, as they may be referenced, and are also needed for all the achievements.
- COG Tag locations are marked with the Gears of War logo (Crimson Omen).
- Every section of each chapter will only contain 1 COG Tag, and 1 Declassified Mission, other than Chapter 7: Aftermath which contains no Declassified Missions.
- Make sure to complete the requirements of the declassified mission for them to count.
- To check declassified mission progress, from the main menu select "Stats & Awards". On the first tab, select "Campaign". Use
to scroll to Pages 41-46 where you can see what difficulty you've completed each declassified mission on.
Collectible Legend:
COG Tag – Red
Declassified Mission – Purple
Achievement - Green
Timelinks - Blue