XCOM: Enemy Within
Xbox 360
- 59,511 Achievements Earned
- 4,459 Players Tracked
- 30 Total Achievements
- 7,834 Obtainable EXP
- 1,000 Gamerscore
- 319 100% Club
Kill an unseen enemy detected by a specially modified soldier in single player
40
21.35%
Rare - 408.00 EXP
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