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