If this image is the actual layout of the controls, this deserves more than all the palms to the faces in this world, no the universe. Who in the hell decides the using the armor ability as LT for bumper jumper. You realize bumper jumper is supposed to have the 4 most used buttons on the RT, LT, RB, and LB. Armor ability is certainly nothing important the needs to a quick trigger pull nor is it nothing that is aimed.
The purpose of triggers is mostly for uses that involve aiming. I am pretty sure there is no aiming necessary in an armor ability.
Why can't you just leave the controls alone? They were fine before, and they will always be fine. Whatever cancer in your studio thought that was a good idea needs to be fired immediately before it spreads like the one in Activision and EA.