Destroy 300 destructible objects in Mission 7,8
Kill 75 enemies while in the stealth mode of Overkill.
Collect all of the information cases in the entire game.
Buy the 'pack 8' gun pack in a multiplayer ranked match
Destroy 500 barrels in ranked SSC Challenge matches
Win every stage of a ranked three round SSC Challenge match
Achieve 75% accuracy at the conclusion of a ranked three round SSC Challenge match
Win a ranked SSC Challenge match
Final blow to Dalton is a headshot with a pimped .44 MODEL 29 handgun
Kill Dalton in less than 40 seconds
Continue playing to unlock this secret achievement.
Earn one million dollars in total over the course of campaign mode.
Kill 50 enemies total in Co-op Riot Shield.
Kill 100 enemies while in the power mode of Overkill.
Kill 25 Martyrs by shooting the Bomb Packs on their chests.
Complete a ranked match without ever needing to be revived.
Complete 20 minor objectives in a ranked match.
Kill 100 enemies total using Sniper Rifles.
Kill 5 enemies total using Co-op Snipe.
Complete all missions as a Professional.
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 25 enemies total using RPGs.
Kill 250 enemies total using Machine Guns.
Complete all missions with the Partner AI.
Kill 250 enemies total using Shotguns.
Kill 150 enemies total using Handguns.
Drag and heal your partner 25 times.
Kill 250 enemies total using SMGs.
Kill 25 Heavy Armor enemies.
Purchase every mask variant.
Kill 50 enemies total in Back-to-Back.
Kill 250 enemies total using Assault Rifles.
Kill 50 enemies total using the Melee Attack.
Finish playing a versus ranked match.
Win a ranked match without purchasing any additional weapons.
Spend 1 minute straight at full Aggro.
Purchase 3 weapons.
Heal your partner for the first time. Training does not count.
Earn one billion dollars in total in ranked matches.
