Though you could say that the way we attack is like a desperate, last-ditch kamikaze attempt to punch through armor on a battlefield, its definitely not the savvy, sneaky knifework of a predator.
Yes. Some 'traditional' attacks with weapons (tenbe and rochin come to mind) are specifically targeted to weak spots and joints in armour - traditional Japanese armour that is.
I will attack like a Samuri and if I die, well good (its a good day to die, the cherry blossoms are out)
, but I will never attack like a sneaky Ninja!