Gears of War

You require 20 of the 30 tags to obtain this achievement. The locations for all the cog tags are as follows: (refer to the video for exact locations (not my video!!!))

Act 1 Chapter 1, 14 years after E-Day, #1, #2, #3
Act 1 Chapter 2, Trial by Fire, #4, #5
Act 1 Chapter 3, Fish in a Barrel, Tag, #6
Act 1 Chapter 5, Knock Knock, Tags, #7
Act 1 Chapter 6, Hammer, Tags, #8, #9
Act 1 Chapter 8, China Shop, #10, #11, #12

Act 2 Chapter 1, Tick Tick Boom, #13,
Act 2 Chapter 2, Grist, #13, #14, #15
Act 2 Chapter 4, Lethal Dusk, #16, #17
Act 2 Chapter 5, Dark Labyrinth, #18


Act 3 Chapter 1, Downpour, #19
Act 3 Chapter 2, Evolution, #20
Act 3 Chapter 3, Coalition Cargo, #21
Act 3 Chapter 4, Darkest Before Dawn, #22, #23, #24
Act 3 Chapter 5, Angry Titan, #24,

Act 4 Chapter 1, Campus Grinder, #25
Act 4 Chapter 2, Bad to Worse, #26
Act 4 Chapter 5, Imaginary Place, #27

Act 5 Chapter 2, Train Wreck, #28, #29, #30

Edit 04/12/10: Added new video

For this achievement, simply collect two thirds (20) of the hidden COG Tags hidden throughout the game on any difficulty.

If you see a red Gears logo painted somewhere, it is a clue that there is a COG tag close by.

For an in-depth guide to all of the COG Tag locations, visit this URL: http://www.xbox360achievements.org/forum/showthread.php?t=12...

The game has total of 30 collectibles. The PC and remastered version of the game has total 33 collectibles. The 3 collectibles are located in Act 5 and NOT included here. For this achievement here, you have to collect 20 of the 30 COG Tags. If you follow my video you will unlock the achievment during act 3

The video shows in progress of the mainstory the collectibles, you see also the current missionobjective, the act and the COG Tag count in the left upper corner of the video.
In the spoilers are the clickable timeline for each Act.
Act 1 - Ashes

Act 2 - Nightfall

Act 3 - Belly of the Beast

Act IV - The Long Road Home

Act 5 - Desperation

02:18 Tienda China

El primero logro "tiempo para recordar" aparecera cuando hayamos conseguido 10 Placas De La CGO, si las van agarrando en orden, el logro debera aparecer en la tienda china

06:20 Evolucion

El Segundo logro "Obligacion" aparecera cuando hayamos conseguido 20 Placas De La CGO, aparecera siempre y cuando no hayas dejado placas en el camino, en la seccion de evolucion

09:29 Restos Del Tren

El Tercer logro "Por los caidos" aparecera una vez tengamos en nuestro poder las 30 placas de la cgo


02:18 Chinese Store

The first achievement "time to remember" will appear when we have obtained 10 COG Badges, if they are grabbed in order, the achievement should appear in the Chinese store

06:20 Evolution

The second achievement "Honor-Bound" will appear when we have obtained 20 COG Plates, it will appear as long as you have not left plates on the way, in the evolution section

09:29 Train Remains

The Third achievement "For the fallen" will appear once we have the 30 cgo plates in our possession