"if you ain't a grunt you ain't shit  "the grunts at phase line echo report multiple hostiles, scattered small-arms fire and are currently engaging
"the term "grunt" is used in the military as a general term for someone who's mos (military occupational specialty) is "infantry"
""if you ain't a grunt you ain't shit  "the grunts at phase line echo report multiple hostiles, scattered small-arms fire and are currently engaging" What is the definition of "grunt"?