Be an engineer and buff your primary gun six times. Then press A, Up, Down, X, LB, RB, LT and you should have infinite ammo (it will show normal ammo on screen but will not decrease).
Challenge Mode Bonuses
Complete the indicated challenge to unlock the corresponding bonus.
Be More Objective 1: Lobster Grenade Launcher, Ritchie Revolver, Duct-Taped Magazines.
Be More Objective 2: Bulpdaun Submachine Gun, Speed Slings, Speed holsters.
Be More Objective 3: Score on Leaderboard.
Escort Duty 1: High Powered Scopes, Red Dot Sights, Muzzle Brakes.
Escort Duty 2: EZ-Nade Auto Grenade Launcher, Drum Magazines.
Escort Duty 3: Score on Leaderboard.
Parkour This 1: Barnett Light Rifle, Front Grips, Rapid Fire.
Parkour This 2: Belgo Machine Pistol, Silencers.
Parkour This 3: Score on Leaderboard.
Tower Defense 1: FRKN-3K Assault Rifle, Underslung Grenade Launcher, Adjusted Iron Sights.
Tower Defense 2: Gotlung Minigun, High-Capacity Magazines.
Tower Defense 3: Score on Leaderboard.
Equip Heavy Guns On Light Or Medium Body Types
Switch to a heavy body type. Select a gun of any weight and customize is as desired. Do the same thing for your secondary weapon. Make it your default weapon and switch back to a light or medium body type. Your default guns will stay the same, but your body will not/ When you play matches, you can mow have a light or medium body type with a Gatling gun.
During the mission where the Resistance is trying to steal the airplane, go to the terminal they are supposed to hack. You will see a message warning you that robots are taking over the world.
Level And Rank Requirements
Gain the indicated amount of experience points to reach the corresponding level.
Level 1: 1,000 points
Level 2: 2,000 points
Level 3: 3,000 points
Level 4: 4,000 points
Level 5: 5,250 points
Level 6: 6,500 points
Level 7: 7,750 points
Level 8: 9,000 points
Level 9: 10,250 points
Level 10: 12,000 points
Level 11: 13,750 points
Level 12: 15,500 points
Level 13: 17,250 points
Level 14: 19,000 points
Level 15: 21,750 points
Level 16: 24,500 points
Level 17: 27,250 points
Level 18: 30,000 points
Level 19: 32,750 points
Level 20: 37,500 points