Ah, it's no use. Just noticed that once you enter in game, the button layout changes from mouse and key to X-Box controller buttons. I thought all the X-Box buttons where mapped mouse and key buttons as it shows it to be in title screen gamepad options screen.
So my only hope is to find something else online, Mgamerz mod to the rescue, or find a good X-Box Turbo controller.
Macro for firing the Mattock is lame. Of course there are different ways to do it than in this thread.
I can already maintain the Mattock firing rate and have done so many times in the past. But maintaining the higher speed of Hunter Mode or Marksman will prove to be way too much of a workout (ie. "No way." And "Word to your mom.")
But there is one thing that turning Mattock to auto fire will help with. Aiming. Aiming and clicking the gamepad trigger really fast at the same time slightly makes adjusting aiming a bit harder.
So yeah, other then comfort, easier aiming and being able to use it on higher fire rate kits, there's really not that much of an advantage to using auto fire for Mattock in my case. And I want all these 3 things, for truth, comfort, and justice.
ProTip - I used an auto fire gamepad on PS3 for the Mattock with Marksman and HunterMode before, and guess what? The PS3 can't handle it, lol. Frame loss and/or fire button inputs don't register every now and then.