Zero Gravity in Arma

ZeroGravity.sqf

private _vehicle = "B_MBT_01_cannon_F" createVehicle [0, 0, 0];
_vehicle setPosASL ((getPosASL player) vectorAdd [0, 10, 3]);

[{
    params ["_args"];
    _args params ["_vehicle", "_lastRun"];

    private _delta = cba_missionTime - _lastRun;
    private _force = [0, 0, getMass _vehicle * _delta * 9.8];
    _vehicle addForce [_force, getCenterOfMass _vehicle];
    _args set [1, cba_missionTime];
}, 0, [_vehicle, cba_missionTime]] call CBA_fnc_addPerFrameHandler;