I’ve tested a different mouse and found this issue is only occurring on my Basilisk mouse, so there must be an issue with it.

When playing DayZ - Sometimes when I hold down right mouse button for hip fire, it goes into aim down sight (ADS) for a split second, then it goes to hip fire. See the video from my Reddit post (which I posted before realizing it was a mouse issue) - https://www.reddit.com/r/dayz/comments/1cx15zv/hip_fireads_issue_or_bug_anyone_know_a_solution/

Any help with how I could possibly fix this is much appreciated! Not sure if I can do a reset of the mouse or something? Or perhaps there’s an issue with the mouse? Thank you!