Control schemes
From Halopedia, the Halo wiki
Xbox Controller
Right trigger= fire weapon
Left trigger= throw grenade, secondary weapon
L3= crouch
Back= score
Start= pause game
D pad= move through menus
Y = switch weapon
B = melee weapon
X = reload weapon/action
A = jump
Black button= swap grenades
White button= flash light/ team chat
Xbox 360 controller
Right trigger= fire weapon
Left trigger= throw grenade, secondary weapon
L3= crouch
Back= score
Start= pause game
D pad= move through menus
Y = switch weapon
B = melee weapon
X = reload weapon/action
A = jump
Left bumper = switch grenade