Army of Two Cheats

Achievements
Complete the following achievements to unlock Xbox Live Gamerscore points.

Elite PMC (50 points): Complete all missions as a Professional.
My Virtual Friend (35 points): Complete all missions with the Partner AI.
Say Hello to my Little Friends (45 points): Purchase the MP7, M134, DAO-X Protecta, MGL MK-X, and the M107 Light Fifty.
Man of Many Masks (50 points): Purchase every mask variant.
If I Were a Rich Man (40 points): Earn one million dollars in total over the course of campaign mode.
Fear is The Mind Killer (45 points): Spend 1 minute straight at full Aggro.
Starting a Riot (30 points): Kill 50 enemies total in Co-op Riot Shield.
Two Eyes are Better Than One (35 points): Kill 5 enemies total using Co-op Snipe.
Seven-six-two Millimeter (20 points): Kill 250 enemies total using Assault Rifles.
This is my Boom Stick! (20 points): Kill 250 enemies total using Shotguns.
Spray and Pray (20 points): Kill 250 enemies total using Machine Guns.
Dead Man's Hand (20 points): Kill 150 enemies total using Handguns.
Alright, Who Wants Some? (20 points): Kill 250 enemies total using SMGs.
One Shot. One Kill. (20 points): Kill 100 enemies total using Sniper Rifles.
Big Boom! Big Bada Boom! (20 points): Kill 25 enemies total using RPGs.
Flip You. Flip You For Real (20 points): Kill 50 enemies total using the Melee Attack.
Fission Mailed (20 points): Kill 25 Martyrs by shooting the Bomb Packs on their chests.
If It Bleeds, We Can Kill It (30 points): Kill 25 Heavy Armor enemies.
Field Medic (30 points): Drag and heal your partner 25 times.
Boots on the Ground (10 points): Finish playing a versus ranked match.
The Devil's in the Details (20 points): Complete 20 minor objectives in a ranked match.
Surviving The Game (25 points): Complete a ranked match without ever needing to be revived.
Retirement Savings Plan (40 points): Earn one billion dollars in total in ranked matches.
Out of Debt (15 points): Heal your partner for the first time. Training does not count.
One Gun is Enough (35 points): Win a ranked match without purchasing any additional weapons.
Beast with Two Fronts (20 points): Kill 50 enemies total in Back-to-Back.
Running Man (30 points): Kill 75 enemies while in the stealth mode of Overkill.
L'Abattoir (30 points): Kill 100 enemies while in the power mode of Overkill.
Weapon Specialist (15 points): Purchase 3 weapons.
Stonewall (30 points): Kill 30 enemies using the Riot Shield melee attack.
My Kind of Case! (40 points): Collect all of the information cases in the entire game.

Additionally there are six secret achievements, all of which are currently unknown.

Secret Achievement (30 points): Unknown.
Secret Achievement (30 points): Unknown.
Secret Achievement (15 points): Unknown.
Secret Achievement (15 points): Unknown.
Secret Achievement (15 points): Unknown.
Secret Achievement (15 points): Unknown.