hi, if possible, could you please tell me the iron-sights vfov, 
when the normal/hipfire vfov is set to 68 ?
i have already tried to figure it out by myself using 
kovaak´s fov calculator, but it didn´t work for me.

thanks in advance

Generation Zero is not added because it has a terrible amount of smoothing. For this reason analyzing any aim FOV accurately is also out of the question. While it could probably be somewhat estimated, it's kind of useless since the sensitivity is so inaccurate anyway.