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