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Alien Swarm: Reactive Drop

Steam
  • 594,367 Achievements Earned
  • 41,283 Players Tracked
  • 198 Total Achievements
  • 67,765 Obtainable EXP
  • 61 100% Club
Chemical Warfare

Kill 500 Swarm with Gas Grenades.

1.68% Ultra Rare - 339.00 EXP

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