This has been bothering ever since the game launched for consoles. There are countless arcade / third person games that have many more controller settings than DayZ - how come a tactical shooter only allows you to change your controller sensitivity and nothing else?
The default deadzone is ridiculously high, especially for a game that requires precise aiming. Not being able to do small aiming corrections and having to literally quickly tap the analogue left and right in the hopes the crosshair stops where you want is extremely unintuitive and frustrating.
If this wasn't bad enough, it has been decided that allowing people to play with Mouse and Keyboard (on servers that allow it) would be fun. So not only you forbid controller players of properly aiming, but you also makes them fight people that can precisely lay the crosshair on your head from 50m away without any aiming corrections after the first move.
Update after update and this not even mentioned by the Devs. Imagine making a realistic shooter with limited controller settings...