From the trenches to the classroom—some lessons can only be learned by those who've already paid the price in blood. Master Sergeant Maxin "Phantom" Marbula has spent twelve years perfecting the art of warfare, but Officer Candidate School presents a different kind of battlefield. While other candidates learn military theory from textbooks, Phantom must carefully conceal his extensive Delta Force background and classified tactical innovations that have already reshaped modern combat. Partnered with brilliant analyst Rachel Vale, Phantom discovers that ancient Roman legion tactics hold the key to countering humanity's most dangerous biologically enhanced soldiers who adapt faster than human forces can respond. But developing revolutionary doctrine requires walking a careful line between academic excellence and operational security, all while his pregnant wife Sarah conducts her own classified research across the galaxy. As enhanced personnel grow more sophisticated in their tactical responses, Phantom and Vale race to complete innovations that could determine humanity's survival. Yet the greatest challenge isn't mastering leadership theory or surviving field exercises, it's maintaining the facade of being just another candidate when every instinct screams to unleash capabilities that would expose years of classified operations. Some soldiers are forged in battle. Others are refined in classrooms. Phantom must excel in both without revealing which came first. Command Precision continues the Legend of 45 series, where mathematical minds meet military precision in humanity's fight against an enemy that learns from every encounter.