Sadly, BF3 cant deliver that.
it will
but the things you describe is player's behaviour. Not game design. There will always be players who prefer to play slower, not rush, stay still some minutes, communicate, "plan" their moves, act more "tactical", maybe even apply semi-real military movements (advance & cover) etc... these guys always exists, and they have a tendency to be able to apply this playstyle on almost any type of map
anyway. (It's in their nature to adapt, to "make their own rules")
But many or most players won't do that, even with far distances between the flags.. what happen there, is that you just get an uncontrolled/unfocused "sandbox" mayhem, with jeeps driving around in circles, people racing around and let's face it; a circus. Is
this more desireable?
Freedom/openeness comes with a price -> it gives players a greater incentive to ignore the game mode, to just "fool around"... i don't think this is the BF legacy at all. Sandboxes are fun, sure, but what creates the best experience is when players fall naturally in to a pattern and a focused fight.