At the time of the War of independence,formations were used, from Squares to lines, the British were experts at it,standing facing the enemy and blasting away. Americans would have lost if they kept this up,playing the British at their own game.
It was the tactic of skirmishes, hit and run which prevailed, the British seen this as unfair and did not employ such methods, would only make em like the rebels. Who won?
Improvisation the best tool in any soldiers arsenal, adapt and improvise, that's how wars are won. Worry about the niceties when we have peace and security and the luxury to do so.
How would you combat Bin Laden?