When Kor lands a ferocious blow on his back, Ferrus turns towards him, giving Kai the opening he needs. He strikes the Sith Lord squarely from the flank, his blade burning a hole in Ferrus, a blow the Dark Lord couldn't possibly survive . . . . and yet he doesn't fall.
The Sith Lord turns, driving the glowing green blade deeper into his side, but also managing to lock Kai's arm in a painful grip.
"I don't have to fight you forever!" He shows the Jedi the comlink he's been palming.
"I just need to delay you long enough to deny you the prize you seek!" He pushes the button, and the faint rumbling sounds of explosions echoes from deep within the command center. Then he drives the debris shard he's been holding towards Kai's stomach.
"Here! Let me return your gift to you!" He glances at Kor.
"You might save yourself, but you can't save them both!" He then attempts to hurl Kai through the nearest window and winds up a kick to send Nathan through another window, sending the Jedi flying into the hangar with glass exploding around him.
As he lets go Kai, Ferrus clutches at his side, his face drawn in pain. He staggers and loses his balance, pitching into the crew pit below. He lands with a loud crunching noise. As the sounds of battle continue to rage outside for the city, Kor can see Ferrus roll over. With a ragged cough, he grasps at the front of his armor, plucking the Sith insignia from his garb. His hand curls around it and he lays his fist on his chest.
"I will never doubt," he whispers through bloody phelgm. He lays his head back, closes his eyes, and the soul of Darth Ferrus, Lord of Iron, passes into the void.
Within the hour, the Galactic Alliance forces take control of the major cities and military facilities on Gala. With the captured information as well as the prisoners of war, the Alliance will be able to leverage considerable advantage in future battles.
But for now, the heroes receive a brief but welcome message.
"Good work. Now come on home."