What about the left/right D-pad functions. If I remember correctly, those were unused in the first game. Maybe that's the quick turn around? Either way I don't want quick turn around to be gone, especially since lock-on is out (not that I really supported it in the first place.
Check out High Voltage Software's new project, "The Grinder." Coming Haloween 2011 to Wii, 360, PS3, and PC