One thing I've noticed, though, is that depth perception was never really an issue in tribes despite the huge map sizes, but it continues to be a problem in newer graphical engines. So I do wonder if the FPS+Z format, at least in a large open areas, is even feasible with newer graphics.
UGH i've noticed that. I cant get depth right in legions if my life depended on it... Nor can I in most new games. The only ones i've been able to do REALLY well with have been Crysis, and Far Cry 2..