It's not happening. Server ticks and all that, balance issues (yes, even open world content needs balance with everything else). Not to mention the amount of effort required from an already taxed dev team to implement something like this, despite how simple you may think it is. I'd suggest looking at your ergonomics, if you are on PC there are hundreds of options available to you, if you're on PS4 I can't suggest anything that controller is made for ants.