Watched a film ages ago about a group of american soldiers, mostly men except for one female soldier who get dropped on a isolated area in veit nam to under go a training lesson of getting captured as a pow and experience the horrors the role involves so they can cope if captured for real. However things go extremely too far when the trainer running the facility rapes the female soldier to prove woman shouldn't be in the army which invokes the soldiers to try to get out of the facility for real with their lives as the trainer must silence the incident

Opposing Force (1986) (http://www.imdb.com/title/tt0091688/)