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XCOM: Enemy Within

Xbox 360
  • 59,397 Achievements Earned
  • 4,454 Players Tracked
  • 30 Total Achievements
  • 7,827 Obtainable EXP
  • 1,000 Gamerscore
  • 319 100% Club
They Shall Not Pass

Eliminate all alien waves

20
54.83% Uncommon - 159.00 EXP

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