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You Win: Gain all trophies.
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No Looking Back: Beat the game in Ironman mode on Classic or Impossible difficulty.
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Meet New People. Then Kill Them.: Win a multiplayer match.
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Xavier: Mind Control an Ethereal. Single player only.
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Humanity's Savior: Beat the game on any difficulty.
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Earth First: Beat the game on Classic difficulty.
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Our Finest Hour: Beat the game on Impossible difficulty.
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Lone Wolf: Clear a UFO crash site with one soldier on Classic or Impossible difficulty.
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Bada Boom: Kill 50 aliens with explosive weapons.
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Welcoming Committee: Kill 150 aliens.
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Pale Horse: Kill 500 aliens.
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Shooting Stars: Shoot down 40 UFOs.
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Ain't No Cavalry Comin': Have a soldier survive every mission in a full game.
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As A Scalpel: Earn the "Excellent" rating in every performance category on a terror mission.
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Edison: In a single game, complete every Research Project.
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Angel of Death: Kill an alien while flying. Single player only.
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All Employees Must Wash Hands...: In a single game, complete every Autopsy.
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Beyond the Veil: Find a soldier with the Gift.
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Prisoner of War: Capture a live alien.
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The Gatekeeper: Stun an Outsider.
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X Marks the Spot: Uncover the alien base's location.
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See All, Know All: Build the Hyperwave Relay.
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On the Shoulders of Giants: Build the Gollop Chamber.
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Ride the Lightning: Build a Firestorm.
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Eye in the Sky: Launch a Satellite.
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All Together Now: Get satellite coverage over every country on one continent.
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Hunter/Killer: In a single game, shoot down one of each alien craft.
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Man No More: Build a suit of powered armor.
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Poison Control: Cure poison on five soldiers in a single mission. Single player only.
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We Happy Few: Complete a mission without losing a soldier.
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The Hardest Road: Advance one of your soldiers to Colonel rank.
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Worth Every Penny: Acquire 1000 credits in one month.
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Oppenheimer: Staff the Research Labs with 80 scientists.
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One Gun at a Time: Staff the Engineering Department with 80 engineers.
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Skunkworks: In a single game, complete every Foundry project.
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You Have 5 Seconds to Comply: Build a S.H.I.V
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Theory...: Build a Laboratory.
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...and Practice: Build a Workshop.
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Wet Work: Complete a Very Difficult abduction mission in five turns or less on Classic or Impossible difficulty.
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A Continental Fellow: Win the game from each of the 5 starting locations.
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What Wonders Await: Complete a Research Project.
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Up and Running: Build a base facility.
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Combat Ready: Build an item.
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Drums in the Deep: Gain access to the lowest level in your base.
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Happy to Oblige: Fulfill a Council request.
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And Hell's Coming With Me: Successfully assault an Overseer UFO.
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Off My Planet: Recover the Hyperwave Beacon.
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Tables Turned: Shoot down a UFO.
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And So It Begins...: Complete the tutorial mission.
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The Volunteer: Make contact with the Ethereal hive mind.
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Flight of the Valkyries: Win a mission with an all-female squad. Single player only.
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New Friend: Complete Friends in Low Places.
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Bait the Hook: Complete Confounding Light.
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The Bigger They Are: Complete Gangplank.
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Rising Dragon: Take your new ally into the final challenge.
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All Aboard: Complete Confounding Light with more than 3 turns left on the timer.
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