Gears of War 4

Gears of War 4 has a total of 50 collectibles, including COG Tags that can be found within the story. Collecting all 50 will unlock this achievement.

Notes:
- You can replay chapters at any point to pick up any collectibles you may have missed.
- The game will automatically save any collectibles that you get immediately, so feel free to quit out once you get them all if you want.

Collecting all 10 COG Tags will also unlock:

The following video will take you through the entire game and show you each and every collectibles in order based on campaign progress. Additionally, you can view timelinks for individual collectibles and chapters underneath as reference.
Act I - Chapter 0
7 Collectibles

[0:03] - UIR Security Report
[0:27] - COG Tag – T. Thurbon / SPC / Montevado – 15184518
[0:46] - UIR Anti-COG Pamphlet
[1:01] - Jacinto Herald
[1:22] - COG Tag – G. Wagner / PVT / Jacinto – 49129751
[1:33] - COG Tag – J. Beckman / CPT / Autrin – 43516211
[1:49] - Bernie’s Last Will and Testament

Act I - Chapter 1
5 Collectibles

[2:06] - Rubble Reclamation Manifest
[2:28] - Shepherd Protection Pamphlet
[2:49] - COG Birthing Pamphlet
[3:14] - Settlement 5 Resident Assignment List
[3:35] - Windflare Lockdown Procedure

Act I - Chapter 2
1 Collectible

[3:56] - DBI Schematics

Act I - Chapter 3
1 Collectible

[4:16] - Shepherd Safety Pamphlet

Act I - Chapter 4
3 Collectibles

[4:38] - Village Windflare Lockdown Procedure
[4:57] - Village Mare Breeding Record
[5:28] - Book Inscribed to Kait
 
Act II - Chapter 1
3 Collectibles

[5:58] - Anya’s Favourite Flower
[6:21] - JD’s Sixth Birthday Present From His Uncle Cole
[6:34] - Cog Military Academy Acceptance Letter

Act II - Chapter 2
3 Collectibles

[6:52] - Photo of JD & Anya
[7:06] - House Plans
[7:23] - Old Bottle of Wine

Act II - Chapter 3
2 Collectibles

[7:37] - JD’s Old Toy Figure
[8:01] - The New Ephyran

Act II - Chapter 4
0 Collectibles
 
Act III - Chapter 1
2 Collectibles

[8:34] - Cog ID Bracelet – S4-A1774
[9:00] - Ancient Book

Act III - Chapter 2
3 Collectibles

[9:20] - Medical Supplies Status Form
[9:39] - COG Tag – D. Nunez / 1LT / Vonner Bay - 89202512
[9:58] - Tourist Map of Fort Reval

Act III - Chapter 3
4 Collectibles

[10:13] - King Figurine Souvenir
[10:40] - Evacuation Procedures
[11:00] - Fort Reval Military Museum Pamphlet
[11:21] - COG Tag – W. Owen / SGT / Ephyra – 12151881

Act III - Chapter 4
2 Collectibles

[11:46] - COG Tag – A Josefson / SPC / Andius - 51415181
[12:04] - Silver Age Dagger

Act III - Chapter 5
1 Collectible

[12:26] - Ephyran Tribune

Act III - Chapter 6
2 Collectibles

[12:49] - Locust Shell Crystal
[13:04] - Mine Scavenger List

Act IV - Chapter 1
1 Collectible

[13:24] - Locust Shell Disposal Form

Act IV - Chapter 2
1 Collectible

[13:38] - COG Tag – K. Rush / PVT / Bronn – 21525112

Act IV - Chapter 3
1 Collectible

[14:14] - COG Orders

Act IV - Chapter 4
2 Collectibles

[14:34] - COG Tag – P. Wood / CPL / Halvo Bay - 20256192
[14:57] - Rations Schedule for Abandoned Gears

Act IV - Chapter 5
2 Collectibles

[15:16] - COG Tag – E. Yates / CPL / Landown - 08821139
[15:29] - Letter
 
Act V - Chapter 1
2 Collectibles

[15:59] - COG Tag – H. Pham / SGT / Kinnerlake - 1292025
[16:20] - Work Stoppage Order

Act V - Chapter 2
1 Collectible

[16:42] - Speyer Scavenger List

Act V - Chapter 3
0 Collectibles

Act V - Chapter 4
1 Collectible

[17:07] – Reyna’s Necklace

The game has a total of 50 collectibles in five acts. The collectibles in Gears of War 4 are like the other Gears of War games. The game has a lot of different collectible types and the COG Tags are a part of it. All collectibles are immediately saved so you do not need to reach the next checkpoint or recollect if you die. 10 of the 50 collectibles are COG tags and they are required for the achievement called "Remember the Fallen".

In the main menu under the point "War Journal" you can check under "Collectibles" exactly which collectible you have collected and which not. They are sorted by act and chapter. Note that the order of the collectibles in a chapter does not match the order in which you pick them up. Use the timelines below to find specific collectibles you are missing.

The COG tag achievement unlocks in act 5-1 if you have found all other COG tags before. You get the last collectible for the Completist achievement automatically during the final cutscene and the achievement unlocks during the credits.

I created a separate video for each act and additionally an All in One video that includes all 50 collectibles. So you can choose what fits you best.

The first spoiler in the guides below is always the video. In the other spoilers are the timelines for the specific acts. In the all in one guide I break the timeline five times for each act so you can use the timeline without scrolling.

In the videos you see in the upper left corner the picture of the collectible, the current counter, the name of the collectible and the act with the chapternumber and name. Before I start with each collectible you can see the current objectives so you know exactly at what time the next collectible is near.

All in One Video





Acts seperately

Act I - There are 17 collectibles in this act. 3 of them are COG tags.



Act II - There are 8 collectibles in this act. In this act there are no COG tags.



Act III - There are 14 collectibles in this act. 3 of them are COG tags.



Act IV - There are 7 collectibles in this act. 3 of them are COG tags.



Act V - There are 4 collectibles in this act. 1 of them is a COG tag.

This guide is for those people, like me, whose progress on the achievement got stuck at 98%. Your progress can get stuck at a different %, but it doesn't matter, the solution is the same. This was found by someone else, I take no credit for it. Just posting it because no guide here has mentioned this, and there are more than a few people with this issue.

If you go to your War Journal on the main menu and your collectibles show 50/50, but your achievement is stuck at whatever % (usually 98%), do the following:

-Close Gears 4 via the home button on your controller
-Go to Network Settings on your Xbox, select the option to go offline
-Go to "Manage Game and Add-Ons" for Gears 4
-Select your gamertag's save data and delete it from console (make sure it's only from the console, if it asks to delete from everywhere, you're still online and risk deleting your cloud save!!)
-Open Gears 4 while still offline and start a new campaign game, settings don't matter
-Reach the first checkpoint during the prologue and pause the game
-Connect your console to Xbox Live and quit Gears 4 via the home button on your controller
-Reboot Gears 4
-As the game loads up, your Xbox will ask you which save file you want to continue on: the new one you just made while offline or the one from your saved cloud data. Select the offline one, you can differentiate them by the timestamp, as your offline one is the most recent one
-Go to your War Journal on the main menu and review your collectibles, the bugged one/s should now be marked as missing
-Collect the missing collectible/s as normal and the achievement should pop!

**Important consideration: Deleting your save data locally from your console and then choosing the offline save data as your new save file will subsequently delete all of your campaign progress and save slots. Don't do this until you're completely done with campaign runs!**

If you've any questions, feel free to comment below. Good luck!