 However, these three female graduates will still not be allowed to serve in infantry units until further studies can demonstrate they are physically capable of doing so.However it was later reported on January 3, 2017 that three women who graduated became the first join a Marine combat battalion that would serve as a rifleman, machine gunner and mortar Marine in the 1st Battalion, 8th Marines.In April 2015, a -year period in which the tough Marine Corps' Infantry Officer Course became gender-integrated for research ended without a single female graduate.