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Niosa Refinery is the first map in Orion's Threat, one of the campaigns introduced in Alien Swarm: Reactive Drop.

Objectives Edit

  1. Destroy Swarm Eggs 0/23
    Clear complex area.
  2. Redirect power
    Restore power inside LVC.
  3. Recieve Code
    Unlock access to the deeper levels.
  4. Proceed deeper inside the facility
    Go deeper inside.
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