Shoot while ragdoll
I think it'd be a neat feature if we could fire our pistols while ragdoll, similar to how GTA V does it. No aiming or anything, just the ability to make your gun shoot out bullets if you've ragdolled.
Although, aiming might be kinda neat. Or something where you can hold right click, and move the mouse, to apply directional force to your arms while ragdolled. It wouldn't be easy to use, but I feel like it'd give players a whole new mechanic to explore if they could have some kind of influence over their body while in the ragdoll state.