Grayson T.

12425-61512-GT is the service number of a Spartan-IV supersoldier. They graduated from the Avery J. Johnson Academy of Military Science.

Spartan-IV training
12425-61512-GT entered the Spartan-IV program as a recruit, where they were put through training at the Avery J. Johnson Academy of Military Science. They eventually graduated, and were put on a list of Spartans who graduated at the academy.

List of appearances

 * Halo Infinite