During an altercation at the Balota airfields, I noticed that every time I aimed down the sights of my weapon while prone, my screen would turn completely black. Once the altercation was over I tried to reproduce the bug, and sure enough I was able to do so. I had a sneaking suspicion that one of the articles of clothing I was wearing was the culprit, and so I removed each of my clothing articles and attempted to reproduce the bug after each removal. It turns out the Tactical Vest I was wearing was completely blocking my field of view every time I went prone and aimed down sights. After removing my tactical vest, I was unable to reproduce the bug.