The three soldiers witness the dying Montagnard woman, who has just given birth, draw her last breath and decide to try to take the baby to safety. However, no one ever severs the umbilical cord.
As Anderson, Johnson and Baker make their way back toward base far from home with no communications and low on ammunition, they become involved multiple times in firefights with the pursuing Viet Cong. Yet, despite being low on ammunition, they continue to fire their M16 rifles on full auto instead of semi-auto. This would not be done under these conditions. They would use semi-auto fire to conserve their limited ammunition supply.
You can see a telephone pole in the distance behind the VC soldier in a close up shot of him at the end.
After their first firefight following the crash of the helicopter, Baker asks how much ammo they have. Sgt. Anderson says he has 8 to 10 "clips", then Johnson says he has 3 "clips". The US military M16A1 Rifle does not use "clips". It uses magazines. The official US designation of this firearm is:
RIFLE, 5.56MM, M16 or RIFLE, 5.56MM, M16AI
and is described as a Lightweight, air-cooled, Gas-operated, Magazine-fed, shoulder or hip fired weapon, capable of semi-automatic or automatic fire.
No US military trained soldier, marine, sailor or airman would refer to a "magazine" as a "clip".
Anderson, Johnson and Baker conclude that the Montagnard woman is dead. However, she is visibly breathing.