gunner vs military personnel

gunner and military personnel both are nouns.

Word	Noun	Adjective	Verb	Adverb
gunner	Yes	No	No	No
military personnel	Yes	No	No	No

As nouns, military personnel is a hypernym of gunner; that is, military personnel is a word with a broader meaning than gunner:

gunner: a serviceman in the artillery
military personnel: someone who serves in the armed forces; a member of a military force

Other hypernyms of gunner include man, military man, serviceman.

gunner (noun)	military personnel (noun)
a serviceman in the artillery	soldiers collectively
	someone who serves in the armed forces; a member of a military force