Trivia: Sigourney Weaver was not that keen to be in the sequel to Alien, so she demanded an exceptionally high fee considering her fairly low status as a movie actress at the time and also a percentage of the box office takings. The producers were going to drop her and go ahead without her but James Cameron insisted that she was fundamental to the film and so her fee was accepted and paid.
Trivia: Early marketing research ahead of the film's release showed that a significant number of people mistook 'Aliens' for the original movie 'Alien.' To address this, the studio made sure commercials referred to the film as "Aliens: the new movie" and gave the film a logo visually distinct from the one for 'Alien.' To this day, 'Alien' and 'Aliens' are treated almost as separate brands; merchandise and tie-in media tend to evoke one or the other, rarely both.
Chosen answer: Down in the tunnels, she is the soldier that says "Maybe they don't show up on infrared at all." and is then grabbed and hoisted to the ceiling by an Alien, discharging her flamethrower and killing the other Marine. Later, Hudson says "The Sarge and Deitrich (the female medic) aren't dead. Their signs are real low but they ain't dead." So she was cocooned and played host for new aliens.
Grumpy Scot