42% headshot rate is absurd. How could you ever consider that normal?
Though that isn't the actual rate of headshots on this image. 42% of the damage dealt was from headshots. Headshots deal +90% damage (by default). Odds are the actual headshot rate is pretty close to 40-50% since only 50% of their overall damage dealt was dealt by Direct shots and, from what I understand, actual headshot rates even for high ranks, on a real person is closer to 25-30%. Anything higher than that is suspicious.