Recently I noticed that now Arma3, lost INERTIA, when working with any primary weapons, especially with heavy weapon. I think, this is a catastrophic omission for A3! Now (v1.62) the player, has no feeling of the weapons weight during fast rotation. I don't know exact in which update it was reduced, or may be even fully removed, but I do remember that inertia was before in Arma3.

Video Examples.
It is one of heavy hand-weapons in ARMA3.
Heavy MG :
https://www.youtube.com/watch?v=yrg7Zp_-ZxQ&feature=youtu.be

Heavy Sniper Rifle :
https://www.youtube.com/watch?v=nSvrxbUurQY&feature=youtu.be

When fast turning with this weapon, it has no inertia. The weapon not continues to move in the direction of rotation. It stops instantly! As seems to me, It's impossible.
How it should looks? Please see example from game Escape From Tarkov with AK
https://youtu.be/2G1Ch0WJkeU?t=850
In this video, the inertia noticeable even when you work with a AK-rifle, in own case, in the Arma, we do not feel inertia, even when working with most heavy weapons in the game! As seems to me, in the Arma3, the small inertia should be even with all basic rifles, but if we will use heavy weapons, then inertia should be more in two times.

It's trouble to the series of ARMA. I hate to see ARMA turn into a pop shooter. Since Operation Flashpoint, the inertness was present in the game. I remember that in previous versions of ARMA3, inertness was in gameplay more noticeable and player felt the heavy weapons much better.
BIS! Please make the inertness for all kinds of hand weapons more visible, Especially for heavy weapons.