Zsonal

I've searched quite a bit for any mods that do this, and I haven't been able to find anything. I'm having a lot of fun shooting waves of lawmen, but at certain times it seems I can't 100% tell where I'm being shot from, and since I have a difficulty mod installed it gets annoying as hell for me. Not only that but I just think it looks better over the simple black vignette on the screen. Is there any way to pull that kind of thing off?