Niosa Refinery is the first map in Orion's Threat, one of the campaigns introduced in Alien Swarm: Reactive Drop.
Objectives[]
- Destroy Swarm Eggs 0/23
- Clear complex area.
- Redirect power
- Restore power inside LVC.
- Receive Code
- Unlock access to the deeper levels.
- Proceed deeper inside the facility
- Go deeper inside.