Gears of War 3 Unlockables

Unlockable COG Characters
UnlockableHow to unlock
Aaron GriffinReceive the Big Money Onyx Medal or "Like" the Gears of War 3 Facebook page to get an unlock code.
Adam FenixPre-Oder code with purchase of the Gears of War 3 Limited or Epic Edition.
Anthony CarmineReach Level 75.
Benjamin CarmineReach Level 34.
Chairman PrescottReceive the Silver AllFathers Medal.
Civilian AnyaReach Level 45.
Classic BairdReach Level 30.
Classic ColeReach Level 23.
Classic DomReach Level 17.
Classic MarcusReceive the Silver Veteran Medal.
Clayton CarmineReach Level 14.
COG GearReach Level 2.
Cole TrainPlay the Multiplayer Beta.
Colonel HoffmanReach Level 50.
Commando DomPre-Order code from Gamestop.
Dizzy WallinReach Level 7.
Golden GearReceive the Bronze War Supporter Medal.
Jace StrattonReach Level 10.
Mechanic BairdPre-Order code from Best Buy.
Unarmored MarcusFinish the Campaign on any difficulty level.
Samantha ByrneReach Level 4
Superstar ColeReceive the Gold MVP Medal