Custom controller layout.

Maybe there is already a topic on the forum for this but i could not find one in the searching of like 15 pages of topics. I feel that at this point in time in the gaming world we should be able to have the ability to set up our own layout for the controllers in the game. Halo 5 has about 10-12 different controller types and yet i still can not find one that fits me just right. One or 2 buttons is always not in the spot i would like. Could it be that hard to add in a custom option to the games controller layout. Just go to it and have it be a drop down menu or something along those lines and you pick what you would like that button to do. I feel that would make me enjoy the game more if i could pick the setup i wanted instead of having to sacrifice comfort for what works at moment. I’d just like to see someone add it to the game and not have to go out and spend extra money on an elite controller that may give me what i ask. Not really complaining about the issue just something i would like to see added. They did technical advances with this game in so many ways, why not just one more with the controller options. PCs do it, and the XB1 is pretty much one. It sounds simple to me.