Just because sprint was flawed in Reach does not necessarily mean that it will be flawed in Halo 4. There is certainly a possibility of it not working, in which case you all would then have a reason to complain, but until we known how it will actually affect gameplay, please stop yelling at 343i for “ruining the game.” They have stated, after all , that balance is still one of their top priorities in the making of a Halo game.
Same goes to all you perk/AA haters.