Complete all missions on Professional.
My Virtual FriendEdit
Complete all missions with the Partner AI.
Say Hello to my Little FriendsEdit
Purchase the MP7, M134, DAO-X Protecta, MGL MK-X, and the M107 Light Fifty. First complete the campaign and all you will need to buy is the M107 Light Fifty and the MP7.
Man of Many MasksEdit
Purchase every mask variant. You need $110,000 to buy every mask variant but there is a glitch. First buy every mask variant (don't leave the menu for the masks). Secondly as soon as the achievement pops up turn off your Xbox 360 and turn it back on you will have all of your money back and none of the masks unlocked (the ones you just bought for the achievement). But you will have 50
If I Were a Rich ManEdit
Earn one million dollars in total over the course of campaign mode.
[One of the best ways to make money quickly is to do the China mission. Blow up the bridge and then go down to the beach to get in the boat. Insead of getting on the boat just quit game and you will have the $30,000. You can make a lot of money quickly with this technique.]
Fear is The Mind KillerEdit
Spend 1 minute straight at full Aggro. Easy if you repeat training, or even easier, simply grab a turret, set your partner in passive mode and fire away.
Starting a RiotEdit
Kill 50 enemies total in Co-op Riot shield.
Two Eyes are Better Than OneEdit
Kill 5 enemies total using Co-op Snipe.
Kill 250 enemies total using Assault Rifles.
This is my Boom Stick!Edit
Kill 250 enemies total using Shotguns.
Spray and PrayEdit
Kill 250 enemies total using Machine Guns.
Dead Man's HandEdit
Kill 150 enemies total using Handguns.
Alright, Who Wants Some?Edit
Kill 250 enemies total using SMGs.
One Shot. One Kill.Edit
Kill 100 enemies total using Sniper Rifles.
Big Boom! Big Bada Boom!Edit
Kill 25 enemies total using RPGs.
Flip You. Flip You For RealEdit
Kill 50 enemies total using the Melee Attack.
Kill 25 Martyrs by shooting the Bomb Packs on their chests.
If It Bleeds, We Can Kill ItEdit
Kill 25 Heavy Armor enemies.
Drag and heal your partner 25 times.
Boots on the GroundEdit
Finish playing a versus ranked match.
The Devil's in the DetailsEdit
Complete 20 minor objectives in a ranked match.
Surviving The GameEdit
Complete a ranked match without ever needing to be revived.
Retirement Savings PlanEdit
Earn one billion dollars in total in ranked matches.
Out of DebtEdit
Heal your partner for the first time. Training does not count.
One Gun is EnoughEdit
Win a ranked match without purchasing any additional weapons.
Beast with Two FrontsEdit
Kill 50 enemies total in Back-to-Back.
Kill 75 enemies while in the stealth mode of Overkill.
Kill 100 enemies while in the power mode of Overkill.
Purchase 3 weapons.
Kill 30 enemies using the Riot Shield melee attack
My Kind of Case!Edit
Collect all of the information cases in the entire game.
Mission 1 CompleteEdit
Completed Mission 1 as Contractor or higher.
Mission 2 CompleteEdit
Completed Mission 2 as Contractor or higher.
Mission 3 CompleteEdit
Completed Mission 3 as Contractor or higher.
Mission 4 CompleteEdit
Completed Mission 4 as Contractor or higher.
Mission 5 CompleteEdit
Completed Mission 5 as Contractor or higher.
Mission 6 CompleteEdit
Completed Mission 6 as Contractor or higher.