I’m really hung up on combat and weapon harm.

I’m really hung up on combat and weapon harm.

I’m really hung up on combat and weapon harm. My gaming history is all D20 stuff, so I’m trying to let go of the metered combat I’m used to, but whats really got me confused is why weapons have a harm rating. If on a 10+ a killer with 2 SMGs is just as effective at killing a room full of guards as a hacker with his bare hands then why even give weapons a harm rating. Just to clarify, this is not a critique, i am genuinely confused.