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Fantasy talk for a second. . . ok, so if robots have far greater accuracy and of course options for self-exposure within a battlefield, why can't their primary directive be to shoot (literally) the guns of the enemy. It would be great if the technology was directed in a way for the robots not be "killer" but rather to shoot at the actual weapon someone is holding and not their person.

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Imagine an enemy soldier facing you. The weapon they are holding has a small profile compared to the person holding it, and they are directly behind the gun. I can see a few challenges on this:

1) Hitting the gun and not the person. (duh)

2) Avoiding the bullet from glancing on the weapon and hitting the person.

3) Differentiating between the weapon and some equipment strapped to the armor, or even a pattern on their clothes.

4) Determining if the person is about to move and get hit by the bullet you'll fired at the weapon.

Depending on the damage dealt to the weapon, the enemy can just get behind cover and pickup the weapon again. You are also losing the surprise element, revealing your position, etc.

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