Vector Ghost Team was created by high level ONI members who found the need for a four man special operations super soldier team.
In 2531, children kidnapped from their homes were sent to serve in the Spartan-III program's Alpha company on Onyx. Ten of these children were seen as exceptionally skilled, even more so than the already skilled participant. These ten children were sent to a training camp moments away from the main camp. Only four of the ten, the best four, would move on to become the foundation of the Vector Ghost Team. After years of training that rivaled the difficulty of the normal Spartan-III program, those four children were chosen. Franklin-382, Caroline-191, Lindsey-412 and Jay-212 were sent through the final transformation to full Spartan-IIIs. After this process they were listed to have, "Failed the Spartan Program", though this was a coverup for the move to the Vector Ghost Team.
A while after this time, the team saw action against Covenant on several classified conflicts and in a few Insurrectionist battles. Some members were removed from the team, but later brought back. In 2549 the team acted in their first major battle, the Fall of Arcadia. They went through the heavy battle, destroying a Covenant Corvette. Jay lost his right arm to a plasma burst, but managed to hold through. For the next few years, the team went into a training phase. Jay was removed from the team for a short period, to undergo his training with his prosthetic. Both Caroline and Jay gained AI, which was quite uncommon. Franklin, Caroline and Lindsey all trained with each other until the Fall of Reach. They were deployed during this time. All members of the team lost their lives here.