Escape. (Complete "Ghost Stories" on any difficulty.)
A-10 strafe 50 enemies.
Hunt down Almagro. (Complete "Legends Never Die" on any difficulty.)
Kill 6 enemies with the knife while underwater in "Legends Never Die".
Gather intel on Rorke. (Complete "Federation Day" on any difficulty.)
Kill sleeping enemy in face down rappel section
Catch the photocopier with your face.
Capture Rorke (Complete "Birds of Prey" on any difficulty.)
Destroy 80 fuel containers.
Make it out alive (Complete "The Hunted" on any difficulty.)
Finish the mission without breaking stealth.
Kill your first enemy in the Call of Duty Ghosts campaign.
Hack the system (Complete "Clockwork" on any difficulty.)
Drop 8 vehicles into ice holes.
Distract the Federation Fleet. (Complete "Atlas Falls" on any difficulty.)
Blow the pressure valves on your first attempt.
Storm the common room and kill everyone without taking damage on Veteran.
Destroy the enemy ship (Complete "Into The Deep" on any difficulty.)
Take down the LCS on the first go.
Storm the factory (Complete "End of the Line" on any difficulty.)
Kill 5 enemies without being detected before infiltrating Black Zone.
Plan your next move. (Complete "Sin City" on any difficulty.)
Rendez-vous in Fort Santa Monica. (Complete "Brave New World" on any difficulty.)
Destroy 21 slot machines.
Gather the troops. (Complete "All or Nothing" on any difficulty.)
Cut a grappling hook rope with an enemy on it.
Destroy the Federation's satellite array. (Complete "Severed Ties" on any difficulty.)
Take out 3 out of 3 helicopters with the remote missile.
Commandeer the enemy space station. (Complete "Loki" on any difficulty.)
Destroy all enemy ground targets and kill no allies with the rods.
Confront Rorke (Complete "The Ghost Killer" on any difficulty.)
Shoot the grapple guys off the side of the train.
Collect all 18 Rorke files.
Take down both attack helicopters in Brave New World.
Escape with all four players
Reach the exfil chopper with 1 minute and 30 seconds or more remaining on the clock.
Escape 1st time
Complete all Extinction challenges and escape.
Make it to the cabin.
Made it to the city.
Get 50 kills with the electric fence and fire traps in a single game.
Scavenge 40 items in a single game.
Escape using a relic.
Reach round 20 in Safeguard.
Make it to San Diego. (Complete "No Man's Land" on any difficulty.)
Earn the mask. Finish the campaign on Veteran.
Found all intels.
Gain access to the Compound area in Nightfall.
Gain access to the Facility in Nightfall.
Kill the Breeder for the first time in Nightfall.
Kill the Breeder in less than 5 minutes in Nightfall.
Kill 50 Cryptids with the Venom-X weapon in Nightfall.
Complete all challenges and kill the Breeder in Nightfall.
Kill the Breeder while using a Relic in Nightfall.
Pounce on 10 enemies whilst controlling Riley.
Kill 5 Phantoms in one game.
Found all the eggs in Core MP's Onslaught Map Pack.
Kill a Rhino with only a pistol in Nightfall.
Reach the cargo area in Mayday in Regular or Hardcore difficulty.
Reach the top deck in Mayday in Regular or Hardcore difficulty.
Kill the Kraken for the first time in Mayday in Regular or Hardcore difficulty.
Kill the Kraken using a Relic in Mayday in Regular or Hardcore difficulty.
Complete all Challenges and kill the Kraken in Mayday in Regular or Hardcore difficulty.
Find all of the Intel in Mayday.
Kill 15 Seeder Turrets in one game in Mayday in Regular or Hardcore difficulty.
Find Ajax. (Complete "Struck Down" on any difficulty.)
Use a hypno trap to turn a Rhino friendly in Mayday in Regular or Hardcore difficulty.
Complete the Egg-Stra XP challenge and then destroy a hive in the Devastation DLC package.
Successfully build all of the Schematics in Mayday in Regular or Hardcore difficulty.
Get past the first gate in Awakening in Regular or Hardcore difficulty.
Extend the bridge in Awakening in Regular or Hardcore difficulty.
Escape Awakening for the first time in Regular or Hardcore difficulty.
Escape Awakening using two Relics in Regular or Hardcore difficulty.
Complete all Challenges and escape Awakening in Regular or Hardcore difficulty.
Find all of the Intel in Awakening.
Kill a Gargoyle with the Vanguard in Awakening in Regular or Hardcore difficulty.
Every shot with the remote sniper kills a person or vehicle.
Complete the Egg-Stra XP challenge and then scan an obelisk in the Invasion DLC package.
Kill 5 cryptids with the Ark attached to every compatible weapon in Awakening in Regular/Hardcore.
Escape Awakening with each of the four classes in Regular or Hardcore difficulty.
Complete the final Ancestor encounter in Regular or Hardcore difficulty.
Complete the final Ancestor with at least 1 relic in Regular or Hardcore difficulty.
Complete every challenge and the final Ancestor encounter in Regular/Hardcore difficulty.
Find all 7 story related intel files in Exodus.
Complete any outpost by activating all of the generators in Regular or Hardcore difficulty.
Complete the Egg-Stra XP challenge and then activate a generator in the Nemesis DLC package.
Kill the final 3 Ancestors within 10 seconds of killing the first Ancestor in Regular\Hardcore.
Defend LA. (Complete "Homecoming" on any difficulty.)
Hit an Ancestor with a Hypno Knife in Regular or Hardcore difficulty.
Kill the final Ancestor with a relic active in Hardcore difficulty.
Kill 3 aliens with a single shot from the NX-1 Disruptor in Regular or Hardcore difficulty.
