I don't know if it's the map or the tree variety there, but the aspen branches were shaking as if there was heavy wind on the surface. The tempo and action was similar to a kid shaking the shop cart in an "I want, I want" rage. Apparently the same caused some flashing in the woods, a vigorously shaking aspen between calmer trees was blinking like a lighthouse here and there, also viewable disturbingly in the bomb sight.
Another thing is that at least for me the random mini freezes were both more frequent and longer lasting than before, about a second each instead of the hiccup I've already got accustomed to.
