Velocity of incoming attack?

[Andreas]

Velocity really does make a huge difference. While it is not entirely imporssible to dodge the line of aim from a gun, it is far harder to do than dodging an arrow moving at reasonable velocities. Distance to the origin of the attack also matters a lot. For example it is possible to dodge a supersonic bullet from a sniper, if the sniper is very far away and you are watching for the muzzle flash with a pair of binoculars, so the single most relevant number should be how much time passes after you spot or predict the attack.

The size of this time would determine a penalty or bonus to your dodge roll. There should also be some sort of evasive moment you could use to make it harder to hit you with attacks as described in Krom's post. This approach makes it quite straightforward to determine how difficult it is to avoid the attacks of speedsters. Divide the time you have to react to their attacks by their level of ATR. It also makes it rather easy to directly implement the effect of things like a combat precognition advantage. Add a constant amount of time for all attacks.