The Cyborg terrorist group

2961 - Vorich Sathar and many others are thrown out of the Helldyr research facility on Arrowhead Island, where horrifying experiments were done to them. Vorich was a third generation cyborg, with prosthetic limbs that could move on their own, but were caused a great deal of pain. Vorich and the rest of the cyborgs thrown out of the facility had nowhere to go, so they tried to return to their lives, before they were abducted. Some just headed into the nearby town of Nost, to make a new life for themselves.
Vorich used to be a Kepara in the Mregian navy, so he signed back up and tried to focus on his work, rather than the seething rage, constant pain, and need for vengeance at his wife and daughters deaths. Over time he got more and more depressed.
2965 - Vorich turns traitor, and attacks the fleet he is part of, taking over several ships, and forcing them to work for him. He quickly falls off the radar and begins recruiting like minded Cyborgs who had been mutilated at Helldyr. A series of battles with the fleet sent to capture or kill him ensues, with Vorich putting to use all his experience chasing an evasive foe. The Cyborg terrorists attacked several towns, making their way slowly towards Arrowhead Island, where they would achieve their purpose, and gain vengeance for all that was done to them.
2966 - The Cyborgs evade capture for the last time, and destroy the Helldyr facility, not even 4 months after Princess Setari was revived there. Much of the ground breaking research garnered there was destroyed, putting the field of prosthetics back at least 10 years. Vorich had gained revenge, but he wanted more, the Empress that allowed such horrible experiments was next. But he never got the chance. His pursuers had finally captured him, surrounding the burning facility, this is where he met his Daughter, all grown up and a loyal servant to the Empire. They fought, but Vorich was no match for her 5th generation limbs.
The cyborg terrorists were detained or killed, and that was the end of it. Although it did birth a cyborg supremacist movement, made up of radical cyborgs using Vorich as their figurehead.