Let me explain what I'm reffering too
You and another player are facing off. Both down to one shot kills.
You aim in and depress the fire button first but nothing happens? Then die? At first I thought I was just slow on the draw but it's happened twice this month and it was really obvious today when I know for a fact a good 1/5th of a second or so I shot but it's almost as if the game did not let me fire because I was already dead despite not having 0 HP or have been hit by a shell
Perhaps I'm getting to deep into the system. But I know it's happened to me and my friends on rare occasions.
Perhaps it's just lag? Though I doubt it. I have very low ping.