So my friend asked me a question that neither I nor my Father, former Marine non 03xx, could answer. He's also interested in joining up and constantly asks me questions that some I can answer and some I can't. Mostly I tell him to spend 5 seconds trying to find them. So, I ask anyone who can provide an answer or possibly a link to find an answer.
The question: How are fire team positions decided ? (i.e. Team Leader, Designated Marksman, Radio[if that's not a different MOS entirely] or any other positions I'm not mentioning.
Thanks a lot to all answers.