Any lighting mods that make sneaking easier?

[Geeves83]

I'm trying to find a lighting mod that makes sneaking around outside easier/possible. I have the Interior Lighting overhaul mod, and that seems to work pretty well. But as for outside, I've tried both URWL (darker nights) and Fellout. In each of those, it seems the nights get fairly dark, but npcs can still spot me from across the god-damn map, even when I have a moderate-high sneak skill and am not moving. I remember Fellout in FO3 worked awesome this way; nights could vary, always dark but sometimes almost pitch black, and you could hide pretty much anywhere (as long as you were still or had good sneak) without npc's seeing you. Is there any mod out there for NV that recreates this?