Zoomed just added now. The calculation is for one gun (A280C), but guns scale around 55-60% Monitor Distance
This game is really hard to analyze for several reason. It has severe negative acceleration when sending single packets through scripts, packet loss with general movement and I'm pretty sure it has a slight angle snapping as well.
On top of that the max and min values of the zoomed sensitivity is not 0 and 2 (or 0 and 100 in-game), but 0.316227766 and 1.732050808. Values below or above this will not reduce or increase the sensitivity any further.
I will add more guns and vehicles next!