the only way aa's will work in halo 4 is if we get all of them at once

The only balanced way that AA’s could function in Halo 4 is to be able to use all abilities off spawn. That way, the game empowers players to make choices in combat, as opposed to Reach, where choosing the wrong AA is the difference between life and death.

For no AA supporters, trust me, I believe Halo 4 needs TONS of no AA Classic modes, but for the people who liked Reach gameplay, this is the only way to improve on it.