You get five Green Berets out in the bush on a 14 day mission, one is female. Young folks in great shape. By nature, horny.
Around 1 am the hormones kick in and somebody is going to be screwing somebody. It is human nature.

It is why we are alive. Young healthy people are driven to screw, even with people they don't really like. A 25 year old gal who has been banged previously by several guys wants it even more than the young man does.
The other 3 guys realize that the one guy is banging the gal, they get jealous. Very very bad vibes.

This is why females should not be sent out on these combat missions.