| Achievement | How to unlock
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|---|
| A Little Bit Alien (20 points) | Modify a soldier in single player.
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| All Hands On Deck (20 points) | Get at least 4 kills with XCOM Base Security personnel.
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| An Army Of Four (100 points) | Beat the game without buying a Squad Size upgrade (Classic+ difficulty).
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| Anger Management (20 points) | Proc Combat Rush on the entire squad (min. 4).
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| Apotheosis Denied (100 points) | Deal with the newest global threat.
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| By Our Powers Combined (40 points) | Field a squad with 4 augmented soldiers, each with a different base ability and win the mission.
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| Elite Defense (40 points) | Beat a new special mission without losing any assets.
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| Enemy Within (20 points) | Get a Soldier to have 5 modifications in single player.
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| Guardian of Earth (100 points) | Designate a highly decorated soldier as the Volunteer.
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| G’day (20 points) | Kill an elite enemy Sniper with one of your own snipers in single player.
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| Mental Minefield (40 points) | Kill an enemy as it is psionically attacking you in single player.
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| Mind the Step (20 points) | Jump two stories in one move in single player.
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| Mutatis Mutandis (20 points) | Field a squad where all members have at least two modifications (min. 4) and win the mission.
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| Nice Cover (20 points) | Use Collateral Damage to blow up a car in single player.
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| Ours are the Furies (20 points) | Complete Furies.
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| Pain in the Neck (40 points) | Cause an enemy to suicide.
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| Regenerate This (20 points) | Kill an elite enemy Medic with explosive damage in single player.
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| Remington... Max Remington (40 points) | Have your special-duty soldier kill three enemies in the same mission.
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| Rise of the Machines (20 points) | Field a squad consisting entirely of augmented soldiers and SHIVs (min. 4) and win the mission.
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| Shieldbuster (20 points) | Eliminate an enemy's shield and kill it on the same turn in single player.
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| Solid Prospect (20 points) | Complete Deluge.
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| Someone Your Own Size (20 points) | Kill a Muton Berserker in melee combat in single player.
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| Steel Martyr (40 points) | Deploy three tactical subsystems on a single soldier in single player.
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| Taking A Load Off (20 points) | Stop a squad member from suffocating in single player.
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| The Meld Squad (20 points) | Field a fully enhanced squad and win the mission.
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| They Shall Not Pass (20 points) | Eliminate all alien waves.
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| Tingling Sensation (40 points) | Kill an unseen enemy detected by a specially modified soldier in single player.
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| Where in the World (40 points) | Make certain of the new threat's location.
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| Who Needs Limbs? (20 points) | Augment a soldier in single player.
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| Zom-B-Gone (20 points) | Eradicate the infestation.
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| Effect | Code
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|---|
| Assault Class pre-equipped with Titan Armor, Alloy Cannon, and Plasma Pistol. HE haas 20 health, 100 aim and will | William Carter
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| Psionic Psi ArmorSupport wiht 20 hp, 200 will, 100 aim, and Mindfray, Psi Inspiration and Telekinetic Field. Also has Rift | Sid Meier
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| Rapid Fire Ghost ArmorAssault with 100hp will and aim(hp doesnt visibly go down until he takes 71 damage) | Otto Zander
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| Snapshot Archangel Sniper with 200 aim, and 110 will and 20hp(he has so much aim that he will never miss) | Ken Levine
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| Squadsight Ghost Armor Sniper with 100 aim will, and 20 hp | Chris Kluwe
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| Titan Armor Heavy with 20 hp, 100 aim and Will. | Joe Kelly
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