Executioner


 * Get the Story from Penumbra Assault Leader Mezen
 * Get the Latest Intel from Lieutenant Dama
 * Stop the Rebel Assault
 * BONUS: Stop the Rebel Assault Before They Place the 1st GPS Beacon
 * BONUS: Stop the Rebel Assault Before They Place the 2nd GPS Beacon
 * Shut Down the Rebel Assault's Wormhole
 * Optional: Set up a Wormhole for a Penumbra Assault
 * Locate the Rebel Front Line of Defense
 * Use Explosives to Open the Blocked Door
 * Take Out Rebel Lieutenant Nelby
 * Optional: Set Up a 2nd Penumbra Assault Wormhole
 * Locate the Rebel Defense's Stronghold
 * Use Explosives to Open the Blocked Door
 * Take Out Rebel Lieutenant Sudevi
 * Infiltrate the Rebel Research Camp
 * Execute Rebel Leader Salyard
 * Gather Research Intel from Salyard's Laptop
 * Release the Thrax Research Subjects
 * Kill the Thrax Research Subjects

Briefing
Headquarters


 * Your squad has chosen to join the Penumbra and fight the Rebels. Head through the back door and meet up with Penumbra Assault Leader Mezen to get more of the story. Then rendezvous with Lieutenant Dama to prepare for the fight.


 * Your ultimate goal is to defeat the Rebels, find their research station, and gather or destroy the evidence in order to put a stop to their experiments.

Debriefing
Thanks to you, we have defeated the Rebels and destroyed their research here in Magma Caverns. I'm sure this isn't the last of them. It's harder to defeat a cause than it is to win a battle. At least we've stopped their unsanctioned experiments on the Thrax... for now.