Arma 3 - No-Recoil Detector

norecoilDetector.sqf

player addEventHandler ["FiredMan", {
    _this spawn {
        params ["_unit", "_weapon", "_muzzle", "_mode", "_ammo", "_magazine", "_projectile", "_vehicle"];
        if (!((stance _unit) in ["STAND", "CROUCH"]) || { isWeaponRested _unit } || { isWeaponDeployed _unit }) exitWith {};
        private _onFireFrameVector = getCameraViewDirection _unit;
        uiSleep (diag_deltaTime * 2);
        private _onFireBufferedFrameVector = getCameraViewDirection _unit;
        private _onFireVectorDeltaArray = (_onFireFrameVector vectorDiff _onFireBufferedFrameVector) apply { parseNumber ((abs _x) toFixed 5) };
        private _onFireVectorDeltaAbsolute = 0;
        { _onFireVectorDeltaAbsolute = _onFireVectorDeltaAbsolute + _x } forEach _onFireVectorDeltaArray;
        private _isSuspect = _onFireVectorDeltaAbsolute <= 0.001; // Tweak delta
        if (_isSuspect) exitWith {    
            // moar calculation (check % of suspect bullets, maybe by each series, etc)
        };
    };
}];