| Achievement | How to unlock
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| ... And the Body Dies | Confront the Outsider Leader.
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| A Dish Best Served Cold | Defeat a Titan.
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| A Story of Axis and Allies | Closure.
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| All That Remains | Escaped Groom Range.
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| Away Team | Complete your first Minor Operation.
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| Bringing down Goliath | Defeat a Muton.
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| Bursting the Bubble | Take down 20 Outsider Shields using laser-based guns within a single campaign.
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| Can't be Everywhere at Once | Complete 6 Dispatch Missions within a single campaign.
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| Clever Girl | Get 40 kills on Flanked enemies within a single campaign.
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| Dead Head | Get 20 Headshot kills with any gun within a single campaign.
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| Don't Run, You'll Just Die Tired | Attach 10 Sticky Grenades onto Outsider enemies within a single campaign.
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| Enemy Within | Have Mind Controlled enemies get a total of 15 kills within a single campaign.
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| Exorcised the Demon | Retrieve and escape with information on the enemy base.
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| Glad My Trust Wasn't Misplaced | Complete your first Dispatch Mission.
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| I've Seen Better, But Not Many | Reach Rank 5.
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| Is He Old Enough to Drive? | Defeat a Sectopod.
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| Leader of Men | Give 150 commands to agents while in Battle Focus within a single campaign.
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| Let the Boys Have Their Fun | Complete an entire Operation without the player firing a weapon or using a grenade.
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| No One Left Behind | Complete the game without a single agent bleeding out.
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| Not Playing Favorties | Take an agent of every class into the field within a single campaign.
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| Ready for Anything | Reach Rank 10.
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| See the World They Said... | Complete 6 Minor Operations within a single campaign.
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| Sight Beyond Sight | Perform 15 unique scans within a single campaign.
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| So Just Let Me Introduce Myself | Secured the package.
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| Spring Cleaning | Complete all Investigations in the base within a single campaign.
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| The Devil's Tower | Infiltrated the Outsider Tower.
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| The Fat Lady Has Sung | Now, it's time to end this.
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| The Last Suit You'll Ever Wear | Customize an agent.
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| They Wont Know What Hit Them | Use all of the agent and player abilities in the field within a single campaign.
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| Top. Men. | Get an agent of each class to Rank 5 within a single campaign.
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| Vigilo Confido | Beat the game on Commander difficulty without ever changing it.
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| We Will Fight Like Lions! | Defeat all the Outsiders before escaping on the Skyranger.
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| Welcome to Earth | Finish off 20 aliens using melee attacks within a single campaign.
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| What Are You Without Your Armor? | Strip all of the armor off of 5 Mutons before killing them within a single campaign.
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