More than 30 years ago, one of the greatest military science fiction movies of all time hit theaters. “Aliens,” the action-packed sequel to the comparatively tame “Alien” forever changed the genre, from Sigourney Weaver’s return as Ripley, who helped transform science fiction’s portrayal of female protagonists, to the size and scope of James Cameron’s vision. And beyond the horrors of the alien horde, “Aliens” introduced us to another deadly force: the Colonial Marines, the crack team of “ultimate badasses,” sent to stop them.