343 has announced advanced controller settings will be included in Halo 5's Cartographer’s Gift update when it drops next week.
The developers said the additional options added to the Controller Menu provide players with extra shooting and aiming customization options.
Here's a list of the new settings pulled straight from the blog post:
Look Acceleration: Adjusts the time it takes to hit max look speed when you peg (apply 100% input in any direction) the look stick. The higher the setting, the quicker you will reach top speed, and the lower the setting, the longer it takes to reach top speed. Value currently defaults to three, if you want it to match the speed included in the multiplayer beta, set the setting to two.
Inner Dead Zone: Refers to a small region around the analog stick’s center position where we disregard input. Inner Dead Zone is used to prevent drift (camera movement when you aren’t applying any input to the look stick). This is caused because the analog sticks do not always return perfectly to center for a variety of reasons (manufacturing tolerances, wear and tear on the controller, etc). Note that the default we use here aligns with the platform recommended value and is what past Halo games have also used. Try tuning it down to 0% to test for drift. Increase the percentage until you get it exactly as you want it.
Outer Dead Zone: Allows you to adjust the point at which the analog stick registers as hitting 100% input. Outer Dead Zone is used to prevent slow turn (when you are applying 100% input on the look stick but not reaching top look speed). The larger the Outer Dead Zone, the sooner you will hit 100%. Try tuning it to 0% and test if you run into cases where you can’t hit the "pegged state" and encounter slow turn. If you do get slow turn, increase it a bit more and try again.
343 goes on to say the default values set on the controls are "identical" to what has been used previously. So it won't "change anything" unless you fiddle with the settings.
You can read the entire post through the link.
The developer has also provided a few more details on the contents of the Halo 5: Guardians Cartographer’s Gift update. Not a whole lot, mind, but a bit of something at least.