Get a Specialist-based medal that requires 3 or more rapid kills while using any Specialist Weapon.
Complete Demon Within on Hardened, Veteran, or Realistic.
Complete Campaign on Hardened, Veteran, or Realistic.
In Campaign, kill 10 enemies in under 3 seconds.
Complete the Campaign on any difficulty.
You have killed 50 enemies.
Reach Commander (Level 55) in Multiplayer while playing online.
Kill three enemies in a melee combo.
Complete Lotus Towers on Hardened, Veteran, or Realistic.
Complete Sand Castle on Hardened, Veteran, or Realistic.
In Campaign, kill 5 enemies from over 100m away.
Get 5 Medals based on a Specialist Ability in a single game.
Complete Rise and Fall on Hardened, Veteran, or Realistic.
Fully upgrade a Cybernetics Core.
Complete Vengeance on Hardened, Veteran, or Realistic.
In Campaign, unlock all attachments for any weapon.
Complete Hypocenter on Hardened, Veteran, or Realistic.
Complete Provocation on Hardened, Veteran, or Realistic.
Complete In Darkness on Hardened, Veteran, or Realistic.
Reach Sergeant (Level 10) in Multiplayer while playing online.
Completed Chapter Five
Complete New World on Hardened, Veteran, or Realistic.
In Campaign, unlock all camos for any weapon.
Use an enemy combat robot to kill 10 enemies.
In Campaign, kill an enemy through a wall or obstruction.
Complete Black Ops on Hardened, Veteran, or Realistic.
Completed Chapter Four
Completed Chapter Three
Completed the Body Puzzle
Completed Chapter Two
Completed Chapter One
Completed the Prologue
Record 4 assisted tackles in one game. (No SuperSim or Practice Mode)
Earn gold from a drill inside the Skills Trainer.
Create a MUT Team.
Throw a Touchdown using the Touch Pass. (No SuperSim or Practice Mode)
Get hit with a neutral zone infraction penalty. (No SuperSim or Practice Mode)
Kill 5 monsters in a row with a bullet or an arrow.
Kill 20 zombies in less than 5 seconds.
Get zombies deer to kill 20 Zombies.
Enter Santa Barbara Island
Kill 2000 zombies
Enter Horno Island
Perform 5 instant kills in less than 15 seconds.
Kill 1000 zombies
Perform 100 instant kills.
Enter La Vendida Island
Kill 10 zombies in less than 5 seconds.
Kill 5 zombies in less than 5 seconds
Enter La Sonada Island