Actually.. I'd go as far as saying that the most of the how-do I questions seem to be related to math one way or another. Distances, speeds, enemy prediction, probabilities, Logic (or lack of), trigonometry, basic matrix math, 3d/isometric projections. Makes me wonder don't they teach math anymore?
— I need to think.. There was a time I knew things like this. it's been so many years I have forgotten..