TTK Problem !!!

With M4A1 , why I need to hit 20 bullets to enemy to kill him ? They are humans or Vampires? Killing system is not realistic. A person's death should not depend on the number of bullets, but on where you shoot them. 1 bullet in the head should kill, and 2-4 bullets in the body should cause a man to fall to the ground, depending on where you shoot, etc. Every gun has same problem. @EA @DICE we need battlefield, not this COD/Warzone . We need Battlefield back, so let’s build Battlefield together.