This mission is the second stage of the Fannus Operation.  The purpose of this mission is to destroy the enemy's  Atmospheric Siphons.
Planetary scans have located the enemy's Atmospheric siphons at a base near Larsa.  The enemy is using these machines to slowly convert OREC Prime's breathable atmosphere to a methane-based medium.
Human life-forms are not in any danger at this time but in the near future they will be unable to survive on the planet surface without supplementary oxygen.
Your mission is to put a stop to this perversion of OREC Prime's atmosphere.  You will be dropped to the south of the Siphon compound.  
Proceed north and engage in a direct assault on the three Atmospheric Siphons.  The base is well defended so anticipate serious resistance in this mission.
