On April 2, 2077, Bradberton underwent the surgical procedure, his head successfully removed and transferred into the LEAP-X system. Over the following months, Bradberton sorted his affairs, only sharing his plans with his executive assistant, Peyton Huxley, who he had entrusted to act on his behalf should something go awry. In January 2077, he confirmed his wishes to the team. If he wanted to move forward and prolong his life, only his head could be preserved. The original intention of LEAP-X was to create a living bio-suit to preserve his body, but Bradberton was nonplussed to learn the power and component requirements render this plan impossible, and that only fifteen pounds of organic matter could be accommodated. Having held up his end of the bargain, the general did the same, moving forward into the last step of the LEAP-X process to sustain his life indefinitely.

During quality control testing, at least 62 test subjects died as a result of organ failure, with many more hospitalized with radiation burns before a safe isotope was created. Undeterred by the incidents or complaints, Bradberton forged ahead, ordering Quantum to be fast-tracked through the approval process, presented as the culmination of a three-year research program. Their concerns were confirmed shortly thereafter when employee Tim Wittingstone was accidentally shot to death by the robotic performers. Employees who spoke up about their concerns were fired, putting even more strain on those that remained. As a result of the decreasing support for staff and lack of critical upgrades, adding this caliber of robotics made the employees even more nervous. To bolster his personal security, a private sanctuary was built beneath Nuka-Town USA by Vault-Tec. Every robot was controlled by a cutting-edge STAR mainframe, which would allow Bradberton to control the machines, defending the park if necessary. Through this deal with the military and cooperation with RobCo Industries at the Battlezone, Nuka-World additionally began to use military-grade robotics at the Galactic Zone, ranging from protectrons, sentry bots and assaultrons. Bradberton ordered it to be put into production, as the Nuka-Cola Quantum, named after the isotope designation in the Beverageer's system. It could also be used 'somewhat safely' in a new kind of Nuka-Cola. In October of that year, the head of the chemical weapons program reported that his team created an isotope of strontium-90 that could be reliably weaponized, as a coating for power armor, a custom munition for the prototypical M42 Fat Man, or even an area effect weapon that could be safely deployed from something as simple as a Thirst Zapper. He pooled his immense fortune and embezzled funds from Nuka-World's budget to cover the expense of the LEAP-X project, including the salaries of the researchers he hired to ensure the prototype device construction reaches fruition.

In exchange for his Beverageer Division scientists aiding the military's chemical weapons program, he would be provided with access to the military LEAP-X (Life Extension And Prolongation) Program. Дespite the increase in demand on the facilities and employees due to the resulting influx in park attendees, John-Caleb Bradberton's agreement with General Braxton in 2076 decreased manpower and budget allocated to the facility, due to resources diverting to Project Cobalt. The last park area, Galactic Zone, opened to the public in 2072, the last expansion to the park before the war. Дemand for space, housing, and parking resulted in the construction of an employee community in 2060, dubbed Bradberton, Massachusetts, for park staff members to live, reducing commute times and traffic congestion. The result was ticket sales nearly doubling overnight. The additions included Dry Rock Gulch in 2058, followed by Safari Adventure in 2067. Due to the overwhelming success, plans to expand beyond the original two parks, Nuka-Town USA and Kiddie Kingdom, were set in motion immediately. On opening day, over 40,000 tickets were sold. After 11 years of Nuka-Cola's success on the national market, the soda-themed amusement park, Nuka-World, opened its gates for the first time on May 1, 2050.

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