Ace Brubaker was the youngest son of Cornelius Brubaker and born a powerful Psionic, he was trained as a Ghost Agent from a young age and by the time he was thirteen years old he was initiated into Project Shadowblade with his own father's support to show the Brubaker family's allegiance to the rule of the Terran Dominion, by the time of his first mission to Char in 5503 he had had further enhancement by Dr. Emil Narud using data on Project Gestalt.