Hard to tell, as there's a Map, and also Mood factor.
But also, a sort of ever existing advantage of AI.
Setting for Map X I would not
tend to play on Y. Plantations, flowers, pottery, trees and bushes,
where I can't make out the direction a headshot came.
All is different on Bardia, where I headshoot AI over 1000m with the Carcano.
i.e. the more you get known a Map, the better you perform.
But at least me myself, I can't be a robot,
and some Days are just waste, where it would being harder,
very frustrating to play. I always adjust this to my current need.
Also in regard to the AI being skill dependent overall.