In the annals of military science fiction, few figures loom as large as Master Chief Petty Officer John-117, the stoic protagonist of the Halo franchise. Clad in Mjolnir armor and wielding an ...

Officials selected 14 senior master sergeants for promotion to chief master sergeant out of 68 eligible for a selection rate of 20.59% in the 24S9 promotion cycle, and 25 master sergeants for ...