I actually noticed a advantage to using low lighting over medium or high...with medium and high, you have all the shadows and crap, but if you go low, it shuts them off, therefore, you can actually see people in the dark that you normally might not be able to see, especially in darker levels against MEC sometimes (or anyone in general US in forest fatigues are the same) where their uniforms are dark.
You'd better hope you're faster than the wind...for I am what drives the bullet into your skull unaware.
I gave you a forum for those libraries, charts, lists, news, theories and sea chanty's Herr Gribble. At your request, so you should be the one breaking it in, eh?