Is there a way, or an expectation to introduce, stat suspension? Not to disable the overall tracking, obviously, but a suspension of stat application to your progress.
The reason I ask isn't necessarily that I would prefer to game my own stats, but that some modes are not compatible with the two overall statistics categories you use (K/D ratio overall, and K/D ratio against other players).
Example: LTS is fun, but absolutely tanks your stats if you are having a bad run. And, because it isn't a heavily-played mode (at least in my experience), you sometimes start mid-match and are unlikely to win. That isn't an issue, as such, but it certainly dissuades me from playing game modes that I feel inexperienced or disadvantaged in.
I think it should be the player's prerogative as to whether the stats are actually applied. Want to go on a live fire run, but aren't quite sure how it works yet? Turn off stat application. You could even indicate the 'gap' with a dashed line. Just a thought!