I have been conducting some secret research into the psychological profile of an open player, and I have determined a single question that, while undoubtedly an oversimplification of reality, seems to predict with astonishing accuracy whether someone "gets" tf2 from a gamesense perspective or not.
The question is:
is viaduct the a) least tactical map in 6v6 or b) most tactical map in 6v6
Take the test and find out your destiny.