1. Alien Swarm: Reactive Drop Achievements
  2. Insane Campaign: Research 7 achievement
Alien Swarm: Reactive Drop

Alien Swarm: Reactive Drop

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Alien Swarm: Reactive Drop

Insane Campaign: Research 7 achievement in Alien Swarm: Reactive Drop

Insane Campaign: Research 7

Complete the Research 7 campaign on Insane difficulty or harder.

Insane Campaign: Research 70
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