Thousands of Marines serving throughout the infantry and in other key positions are about to get new gender-neutral job titles, but the service's top leaders are pushing to leave the word "man" in some of its most iconic occupations.

In all, the Marine Corps plans to rename 19 of its military occupational specialties, or MOSs, as the result of a months-long review mandated by Navy Secretary Ray Mabus. A service-wide message announcing the changes is expected to be published within the next few days .

The terms "rifleman" and "mortarman," are among those that remain untouched, according to a list — obtained by Marine Corps Times on Monday — of 33 MOSs that were reviewed. And that was by careful design, said a Marine official who spoke on the condition of anonymity .

Marines with Company A, Ground Combat Element Integrated Task Force, fire the M4 Modular Weapon System during a zeroing exercise at Range 106, Marine Corps Air Ground Combat Center Twentynine Palms, California, Feb. 24, 2015. From October 2014 to July 2015, the GCEITF will conduct individual and collective level skills training in designated ground combat arms occupational specialties in order to facilitate the standards-based assessment of the physical performance of Marines in a simulated operating environment performing specific ground combat arms tasks. (U.S. Marine Corps photo by Sgt. Alicia R. Leaders/Released)

Since all Marine are considered riflemen, the infantry rifleman military occupational specialty won't get a new gender-neutral name.

Photo Credit: Sgt. Alicia R. Leaders/Marine Corps

"Names that were not changed, like rifleman, are steeped in Marine Corps history and ethos," the official said. "Things that were changed needed to be updated to align with other MOS names."

× Fear of missing out? Sign up for the Marine Corps Times Daily News Roundup to receive the top Marine Corps stories every afternoon. Thanks for signing up. By giving us your email, you are opting in to the Marine Corps Times Daily News Roundup.

In most cases, the word "man" will be replaced by Marine. Those changes are as follows:

Basic infantry Marine.

Riverine assault craft Marine.

Light-armor vehicle Marine.

Reconnaissance Marine (to include three other recon-related jobs that include the word "man").

Infantry assault Marine.

Basic field artillery Marine.

Field artillery fire control Marine.

Field artillery sensor support Marine.

Fire support Marine.

Basic engineer, construction and equipment Marine.

Basic tank and assault amphibious vehicle Marine.

Armor Marine.

Amphibious assault vehicle Marine.

Amphibious combat vehicle Marine.

The field artillery operations man MOS is expected to be changed to field artillery operations chief, since that position is typically held by a Marine in the rank of staff sergeant or above.

The anti-tank missileman MOS is the only position that will pick up the word "gunner" in place of "man."

Others on the list — like manpower officer or vertical takeoff unmanned aerial vehicle specialist — will still include the word "man" because it's part of a word that doesn't describe the Marine doing the job.

An amphibious assault vehicle, assigned to the 31st Marine Expeditionary Unit (MEU), embarks the well deck of the amphibious dock landing ship USS Germantown (LSD 42) during Amphibious Landing Exercise 2015 (PHIBLEX15). PHIBLEX15 is an annual bilateral training exercise conducted with the Armed Forces of the Philippines. Germantown is part of the Peleliu Expeditionary Strike Group, commanded by Rear Adm. Hugh Wetherald, and is conducting joint forces exercises in the U.S. 7th Fleet area of responsibility. (U.S. Navy Photo by Mass Communication Specialist 2nd Class Amanda R. Gray/Released)

Amphibious assault vehicle crewmen will soon be called amphibious assault vehicle Marines. The job title is one of 19 that is expected to change in coming days as the Marine Corps makes its positions more gender neutral.

Photo Credit: Navy

In addition to the service-wide message that will address the changes, the Marine Corps plans to update its MOS manual, the official said. The full review included more than 33 MOSs, but many weren't affected because they already include gender-neutral descriptors like "specialist" or "chief."

Mabus directed the Marine Corps and Navy to review its job titles and descriptions in January, a month after Defense Secretary Ash Carter announced that all military jobs would open to women.

"As we achieve full integration of the force ... this is an opportunity to update the position titles and descriptions themselves to demonstrate through this language that women are included in these MOSs," Mabus wrote in a January order to Commandant Gen. Robert Neller. "Please review the position titles throughout the Marine Corps and ensure that they are gender-integrated as well, removing 'man' from the titles."

The Navy's review has broadened beyond its original mission of removing the word "man" from as many as 21 job titles and rating names. That review could ax newer titles like aircrew survival equipmentman, as well as timeless ones such as corpsman and yeoman — even seaman.

As of late June, no decisions had been made. The Navy has called for a second review of the proposals, a process likely to take a few months.

The move has proved unpopular with many Marines and sailors , with several branding it political correctness run amok .

"We have reached peak crazy," one reader commented on an earlier story by Marine Corps Times about this topic.

"If a woman isn't going to consider making the Navy her career because she is called a fireman or a corpsman, then I don't think she was going to make the Navy a career period," another reader commented on a Navy Times story. "We don't need [people who are easily offended] like that clogging up the institutions that protect our country."

Senior Reporter Mark D. Faram contributed to this report.

Gina Harkins is the editor of Marine Corps Times. She oversees reporting on Marine Corps leadership, personnel and operations. She can be reached at gharkins@marinecorpstimes.com.