I think the biggest concern should be.
How dark are these shadowed areas?
Sneak attack is striking a vital point, not easy to do if the target is a darkened form. A form you can see but locate vital points would not be a strong point. Just because it's night, and just because you're in a dark alley doesn't mean i can't always see your throat with decent clarity.
People tend to misplay that as being either, TOO blind for realism, or able to see too well.
Oh and the kicker is.
Gameplay is greater then Realism.
How dark are these shadowed areas?
Sneak attack is striking a vital point, not easy to do if the target is a darkened form. A form you can see but locate vital points would not be a strong point. Just because it's night, and just because you're in a dark alley doesn't mean i can't always see your throat with decent clarity.
People tend to misplay that as being either, TOO blind for realism, or able to see too well.
Oh and the kicker is.
Gameplay is greater then Realism.