Here is the full list of all 37 Army of TWO (Asian) achievements worth 1,000 gamerscore.
Earn one billion dollars in total in ranked matches.
Kill 25 enemies total using RPGs.
Earn one million dollars in total over the course of campaign mode.
Kill 25 Martyrs by shooting the Bomb Packs on their chests.
Kill 150 enemies total using Handguns.
Complete all missions with the Partner AI.
Kill 250 enemies total using Shotguns.
Kill 250 enemies total using Machine Guns.
Kill 100 enemies while in the power mode of Overkill.
Kill 5 enemies total using Co-op Snipe.
Kill 100 enemies total using Sniper Rifles.
Kill 30 enemies using the Riot Shield melee attack
Purchase the MP7, M134, DAO-X Protecta, MGL MK-X, and the M107 Light Fifty.
Complete all missions as a Professional.
Collect all of the information cases in the entire game.
Kill 250 enemies total using SMGs.
Kill 25 Heavy Armor enemies.
Kill 50 enemies total using the Melee Attack.
Complete a ranked match without ever needing to be revived.
Win a ranked match without purchasing any additional weapons.
Drag and heal your partner 25 times.
Kill 75 enemies while in the stealth mode of Overkill.
Kill 50 enemies total in Co-op Riot Shield.
Purchase every mask variant.
Completed Mission 6 as Contractor or higher.
Purchase 3 weapons.
Completed Mission 5 as Contractor or higher.
Kill 50 enemies total in Back-to-Back.
Completed Mission 4 as Contractor or higher.
Completed Mission 3 as Contractor or higher.
Kill 250 enemies total using Assault Rifles.
Heal your partner for the first time. Training does not count.
Completed Mission 2 as Contractor or higher.
Complete 20 minor objectives in a ranked match.
Finish playing a versus ranked match.
Spend 1 minute straight at full Aggro.
Completed Mission 1 as Contractor or higher.