Army of Two Progress

Kill 50 enemies total in Back-to-Back.

Purchase the MP7, M134, DAO-X Protecta, MGL MK-X, and the M107 Light Fifty.

Complete all missions with the Partner AI.

Collect all of the information cases in the entire game.

Kill 5 enemies total using Co-op Snipe.

Drag and heal your partner 25 times.

Kill 250 enemies total using Assault Rifles.

Purchase 3 weapons.

Spend 1 minute straight at full Aggro.

Heal your partner for the first time. Training does not count.

Completed Mission 6 as Contractor or higher.

Complete all missions as a Professional.

Completed Mission 5 as Contractor or higher.

Complete 20 minor objectives in a ranked match.

Kill 75 enemies while in the stealth mode of Overkill.

Kill 50 enemies total in Co-op Riot Shield.

Kill 250 enemies total using Shotguns.

Earn one million dollars in total over the course of campaign mode.

Kill 100 enemies while in the power mode of Overkill.

Kill 250 enemies total using Machine Guns.

Kill 25 Martyrs by shooting the Bomb Packs on their chests.

Complete a ranked match without ever needing to be revived.

Finish playing a versus ranked match.

Win a ranked match without purchasing any additional weapons.

Completed Mission 4 as Contractor or higher.

Kill 25 Heavy Armor enemies.

Completed Mission 3 as Contractor or higher.

Kill 250 enemies total using SMGs.

Completed Mission 2 as Contractor or higher.

Kill 30 enemies using the Riot Shield melee attack

Kill 100 enemies total using Sniper Rifles.

Kill 25 enemies total using RPGs.

Completed Mission 1 as Contractor or higher.

Kill 150 enemies total using Handguns.

Purchase every mask variant.

Kill 50 enemies total using the Melee Attack.