Halopedia Era UNSC.png

Gratney

From Halopedia, the Halo wiki

Gratney
Political and military information

Notable info:

 

Gratney was a human scientist. Along with Walis, Gratney developed the Gratney-Walis Hierarchical Aptitude Score, a score used at Unified Combined Military Boot Camp to evaluate a recruit's command potential.[1]

List of appearances[edit]

Sources[edit]