The main aspects of the bumper jumper is for melee and jump actions to be assigned to bumper buttons and for sprint to be assigned to A or X. My suggested button layout is:
RT: shoot
LT:zoom
RB:melee
LB:Jump
A:Sprint
X:Toggle Camo mode
B:Reload
Y:Change Weapon
LS:Crouch (needs a hold and toggle option)
RS:Toggle Armour mode.
Or some variation of same. Perhaps someone can think of something better whilst still maintaining the jump and Melee assigned to bumpers, but also having sprint assigned to the colour buttons, and whilst still maintaining a satisfying feel. Such as when Reload is assigned to thumb stick it doesn't good.