I absolutely agree, it is absurd to think that anyone could sprint for 30 seconds then be able to hit a head-sized target at 200yards within a second or two.
The "hold breath" feature with the shift zoom is also very unrealistic. As a shooter, I can tell you that there is no way to magically cancel out every variable that makes shooting difficult, even for a second. In fact, the harder you try, the worse they get - strain all your muscles to hold the gun perfectly still, and you'll just tremble more. Hold your breath and your aim gets even more unstable. And I'm talking about relaxed range shooting, not "holy **** that guy just got blown up and I had to run a mile with bullets kicking up dirt all around me" conditions.
The way to shoot accurately is to study the way your sights move when you steady your gun. Then learn to "go with the flow" and time your shots with your natural movement. For example, a good friend of mine always tries to breath steadily and fire as his sight passes from the top of its "swing" to the bottom, pulling the trigger just as it passes over the target.
There is absolutely no debate as to whether adding sway would be realistic - it clearly would be. I think it'd also add another element of skill to the game, as bolts would be a little harder to master. In addition MGs would be better since they wouldn't get insta-sniped the second they popped up in a window - you'd actually have a second to suppress enemy riflemen as they aimed at you.
TL;DR: A moderate amount of sway in ironsights would be realistic and good for gameplay. Like in RO1, it should increase drastically when you're exhausted.
The "hold breath" feature with the shift zoom is also very unrealistic. As a shooter, I can tell you that there is no way to magically cancel out every variable that makes shooting difficult, even for a second. In fact, the harder you try, the worse they get - strain all your muscles to hold the gun perfectly still, and you'll just tremble more. Hold your breath and your aim gets even more unstable. And I'm talking about relaxed range shooting, not "holy **** that guy just got blown up and I had to run a mile with bullets kicking up dirt all around me" conditions.
The way to shoot accurately is to study the way your sights move when you steady your gun. Then learn to "go with the flow" and time your shots with your natural movement. For example, a good friend of mine always tries to breath steadily and fire as his sight passes from the top of its "swing" to the bottom, pulling the trigger just as it passes over the target.
There is absolutely no debate as to whether adding sway would be realistic - it clearly would be. I think it'd also add another element of skill to the game, as bolts would be a little harder to master. In addition MGs would be better since they wouldn't get insta-sniped the second they popped up in a window - you'd actually have a second to suppress enemy riflemen as they aimed at you.
TL;DR: A moderate amount of sway in ironsights would be realistic and good for gameplay. Like in RO1, it should increase drastically when you're exhausted.