XCOM: Enemy Within achievements

40.43%

Apotheosis Denied

Deal with the newest global threat

43.26%

They Shall Not Pass

Eliminate all alien waves

45.39%

Regenerate This

Kill an elite enemy Medic with explosive damage in single player

56.03%

Elite Defense

Beat a new special mission without losing any assets

57.45%

Shieldbuster

Eliminate an enemy's shield and kill it on the same turn in single player

58.87%

Zom-B-Gone

Eradicate the infestation

69.50%

A Little Bit Alien

Modify a soldier in single player

75.18%

Who Needs Limbs?

Augment a soldier in single player

97.16%

Taking A Load Off

Stop a squad member from suffocating in single player