my perfect control scheme would be
LT: grenade
LB: thruster
RT:shoot
RB: reload
R thumb stick: smart scope
L thumb stick: crouch
D-pad: grenade swap
A: jump/clamber
B: melee
X: sprint
Y: swap weapon
Personally the only benefit may be time. I never under stood why people whined about the gb for day 1 update. This may be my last game o xbox one till halo 5 so I don't need the room.