It´s rubbish.When you hold the weaponn(not after running) the movement from the weapon is too much. Every soldier and "normal" people can hold a weapon in reallife better.
This weaponsmoving is very unrealistic.I don´t shoot with a real gun,but i hold a real gun and shoot with airguns.
But such weaponsmoving when you look through a scope in arma3 is a very bad joke!

A lot of people complain about this subject. Is the weapon bracing and waving unrealistic? yes. fuck that shit, but to the people who call themselves fat ass because they move at a solid jog wearing 100+ pounds of gear (including weapon) that is pretty real. Full combat gear is about a 10 minute mile walking or 8 jogging. That doesnt even count the Forced march stats of running for a while and the riggor of being in combat. Bohemia says they are coming out with weapon bracing so the first problem may be fixed, as for the rest... meh.
*I cant wait for BI to charge me another 30$ for another base feature :(

Bot only after running! Spawn on a server,choose your weapon and make no step.This fucking weaponmoving is too much.Of course when you running a while or wear a heavy equipment,you can´t target very well-But in arma 3 you can´t target well when you stand still,have made no step and have only underwear!

Sometimes arma3 makes no fun to play,many clans and good modders stop playing.Performance in multiplayer very poor A N D then this shit fatigue sytemm too.That´s too much to have fun with arma 3.
Arma 2 was much more better,multiplayerperformance too.
And the biggest mistake is to think more=better. A game will never be like real-life and some "realistic-features" makes the game sometimes more unrealistic.
I hate the mod "ACE" too,it makes the gameplay only bad.And the "realistic-experts" mean some mods will be so realistic,but then they must simulate that a soldier must sleep,go on toilett or a sniper stay 1 day on the same place and a respawn will be unrealistic too.
OFP,Arma1/2 were perfect,a great balance between realistic and playable.And the medicsystem is a bad joke too.When you will hit from a heavy MG in the leg for example,you will loose this leg. But in the ACE mod comes a soldier and give you morphin and you can walk again....very realistc.
Ok with this all i will say arma2 was good enough and all the realistic-stuff makes the gameplay much more worse.
Sry for my bad english!!!