Destroy both helicopters with one Valkyrie rocket from the deck of the ship.
Make it through the NOVA 6 gas without dying on Rebirth Island.
Complete the campaign on Hardened or Veteran difficulty.
Complete the campaign on any difficulty.
Complete "Rebirth" and "Redemption" on Veteran difficulty.
Crack the code.
Kill 7 monkeys in under 10 seconds in the Rebirth labs.
Complete "Crash Site," "WMD," and "Payback" on Veteran difficulty.
Incinerate 10 enemies with the flamethrower attachment in the POW compound.
Get to the POW compound in the Hind using only rockets.
Kill 5 enemies with a single frag grenade in the campaign.
Rack up a body count of 20 NVA using air support in Hue City.
Destroy all slingshot targets in 3 attempts.
Use the Grim Reaper to destroy the MG emplacement.
Guide the squad through the Soviet outpost without them getting killed.
Enter the Soviet relay station undetected.
Find the Soviet connection in Laos.
Destroy all targets and structures while making your way up the river.
Complete "Numbers," "Project Nova," and "Victor Charlie" on Veteran difficulty.
Silently take out 3 VC.
Escape the ship with 2:15 left on the timer in Veteran.
Escape the Past.
Escape Kowloon.
Use only dual wield weapons to escape Kowloon.
Reach rank 10 in Combat Training.
Retrieve the dossier and the defector from Hue City.
Complete "SOG" and "The Defector" on Veteran difficulty.
Demonstrate killer economic sensibilities by taking down 3 enemies with a single bullet.
Continue playing to unlock this secret achievement.
In Dead Ops Arcade, use a Speed Boost to blast through 20 or more enemies at one time.
Access the terminal and battle the forces of the Cosmic Silverback in Dead Ops Arcade.
Sabotage the Soviet space program.
Complete "Operation 40," "Vorkuta," and "Executive Order" on Veteran difficulty.
Use the explosive bolts to kill 30 enemies in the campaign.
Receive orders from Lancer.
Escape Vorkuta.
Destroy all enemies on vehicles during the prison break.
Ensure your squad escapes safely from Cuba.
Take down Castro with a headshot.
Kill 10 NVA with Dragon's Breath rounds.
Find all the hidden intel.
Watch a film or clip with a friend.
Finish 5 Wager Matches "in the money."
Buy every weapon off the walls in a single Zombies game.
Kill the Pentagon thief before it can steal your load-out.
Shoot at or be shot by an ally with a Pack-a-Punch crossbow and kill six zombies with the explosion.
In Ascension, escape on all 3 lunar landers.
In Ascension, kill at least 5 zombies with 1 Gersh Device.
In Ascension, Pack-a-Punch a weapon by round 8.
In Ascension, kill a space monkey with a fire trap.
In Call of the Dead, send the crew to Paradise in solo or co-op.
In Call of the Dead, send the crew to Paradise in co-op.
In Call of the Dead, make a zombie explode using the V-R11.
In Call of the Dead, kill 10 zombies with one Scavenger shot from over 100 feet away.
In Call of the Dead, cut the lights on the Director.
In Shangri-La, acquire the focusing stone.
In Shangri-La, kill a Shrieker zombie while blinded by it.
In Shangri-La, dispose of a Napalm zombie without it harming any players.
In Shangri-La, get something from the monkeys.
In Shangri-La, use the 31-79 JGb215 on each type of zombie.
In Moon, complete Richtofen's grand scheme.
In Moon, hack something.
In Moon, become trapped in the Receiving Area and free yourself through resurrection in co-op.
In Moon, purchase every perk in one game.
In Moon, acquire 3 pack-a-punched weapons at the same time.
In Moon, prevent each excavator from breaching the base in one game.
Use no more than 6 TOW guided missiles to destroy the tanks in the defense of Khe Sanh.
Break the siege in the battle of Khe Sanh.
