If I use any lock on weapon I don't get sound when locking onto an enemy, friendly, or empty vehicle. I don't get any notification by sound of incoming missiles with any vehicle ever. I get the same result on any server I'm on, or in the virtual reality I have the same problem.

I did a wipe of my windows a few months back because of what I think was a memory leak with windows. I'm pretty sure this is when it started. I have deleted Arma from my computer and when I reinstall it I still have the problem. I have verified the files in my steam folder still nothing. I have deleted Steam form my computer and when that didn't work I wiped my hard drive and reinstalled windows and I still have the same bullshit. At this point I have no clue what it is, so if anyone has any ideas that would be wonderful because I don't know what to do.