I know a lot of people hate AA's but i like them. NOT all but SOME. AL needs to go but abilities like active camo, sprint, evade, and jetpack can stay. Unlike Reach, where you choose the ability during a loadout these abilities should come with your spartans armor. What i mean by that is that it could be an armor effect that is customizable. That way if the credit system comes back then you the player would first have to buy the effect and then be stuck with that one effect until you change it for the next game. Ex: Buying an active camo ability would give you the use of the ability in battle but would still be on a timer until the energy is gone. To change to, say the jetpack ability you would have to wait for that match of Multiplayer to end and then you can go into your armor list and change the effect.