How accurate is the portrayal of communist guerrilla groups like M-19 in Netflix’s show Narcos?

I recently started watching the show because I became interested in South American history. My only exposure to this particular point of Columbian history has been this show (no academic sources). I’m curious as to how true to real life communist guerrilla groups, mainly M-19 are portrayed. via /r/communism https://ift.tt/3bYEtCs