|“||You are a clone and a soldier in the Republic Army. Our mission depends on it.||„|
|~ Colonel Gascon to Gregor|
Gregor was fought alongside an elite team of clone troopers in the Battle of Sarrish. After the battle, the survivors thought Gregor was withdrawn. The Republic helped Gregor regained his memories and he agreed to help them in a mission. He salvaged his armor and weapons from his boss to foil a Separatist bombing plan.
Gregor used the explosive kegs to destroy the battle droids and most of the Separatist building. Gregor's partners refused to leave him but Gregor insists that he will return.