All this time I've played with the assumption that attacks work like they (more or less) work in Doom - once a zed's attack animation has reached the point where it makes its attack, it shoots out a hitscan that with rare random exceptions has no chance of missing and at that instant you're either out of its range or getting hit. But every so often I hear stuff about people "dodging" say the scrake's chainsaw or whatnot, and a few times I have noticed that a scrake seems to be sawing right between two players in melee for several seconds without anyone getting hurt. Can someone who knows what's going on explain to me how this all works?