you're forgetting the hacker mentality types, as in the persons who are just obsessed with finding easy solutions to complex problems and gather their knowledge from the system itself, from trial and error and deep research. in warlights case, by playing alot, studying their mistakes and other players games.
and the metas, the folks who take their ideals from multiple schools of thought and change their way of play according to their opponent or bad mood or whatever. http://www.youtube.com/watch?v=pGFf3SRP1bE
unpredictability is such a strong weapon.