I've been playing halo since the day Halo: CE came out, Happily I enjoy Halo 4, I think you guys did a great job. Except with the control schemes, I don't know how you felt alright with putting the control schemes in as they are, It actual robs from the game play in my opinion because of how clunky they feel, I Have tried numerous different control schemes too, and what is the most upsetting is there isn't even a setting close to the old default, How can you just blatantly do that to old time players? How controls schemes like this (see below) didn't make it into the game astounds me. Please update a control customization or a reasonable scheme into the game.
LT: throw grenade
RT: fire weapon
LB: sprint
RB: Melee
L stick: Move/crouch
R stick: Look/zoom
Y: Switch weapons
B: Reload
X: Armor ability
A: Jump
This might not be the ideal scheme for everybody, but its a lot damn closer than what is currently available, Moving Melee to B and Armor ability to RB and Reload to X would help with people that are not completely comfortable with this scheme too.
Please take another look at this for a future update.