Tarkov is much less realistic than it claims to be. It's as much of a mech game, with locational damage and armor, ammo types that have drastic effects on gameplay, weapons that all behave quite differently. In a game like, say, arma, all guns are basically the same because outside weight and ergo all modern rifles are basically the same. Ammo does matter, but it's more about how flat the trajcetory is. The game models armor but there are no magic bullets that can arbitrarily pierce rifle plates.