TWENTYNINE PALMS, Calif. (Oct. 4, 2021) Hospital Corpsman Hunter Missey, a corpsman with 1st Battalion, 3d Marines, participates in company attacks on Range 400 during Service Level Training Exercise 1-22 at Marine Corps Air Ground Combat Center Twentynine Palms, Calif., Oct. 4, 2021. Range 400 provides Marine Corps ground units the opportunity to test and enhance their ability to command and control forces in a contested environment. (U.S. Marine Corps photo by Cpl. Juan Carpanzano)