Different shooters treat shooting different parts of the body differently.
Many Call of Duty titles only separate the body into two areas: the head, and everything else (with the exception of sniper rifles). On the other hand, I believe that in Battlefield titles you do more damage to the body than to the limbs.
How does this work in Star Wars Battlefront? Do I do more damage hitting the chest than the feet? Does it depend on which weapon I'm using?