[Student] - Seeking advice/review on resume for summer internships geared towards Defense/Automotive Companies

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Currently a Junior Mechanical Engineering student looking for internships in defense or automotive. I believe my resume isn't too bad however I can't seem to get interviews from defense companies and mostly hearing back from civil roles which isn't really what I want to do. I believe my resume is very broad and I'm not sure what I can do to fix it. My GPA isn't the best which is why it isn't listed, however, in most companies in which I have interviewed I seem to do well or at least I feel that way, I feel it's just the filters or getting my foot in the door to be the hard part and hoping fixing my resume can help with that.