For personal enlightenment, and the sharing of information through the wiki and by word of mouth...
What do Valor and Ranging do EXACTLY.
I know Ranging allows you to find and track criminals (through scents), and that the success rate is determined by Perception and Exploration, but not exactly how the skill and stat values add up.
I have no idea what Valor does, other than allow you to learn Ranging.
Also, am I correct in assuming that a Ranger without PVP skills can track criminals, but not punish them?