M39
The first step is to set the sensitivity at the level of 0.6 - 0.8, depending on the individual preferences of the user. This will allow you to get comfortable weapon control and avoid sudden cursor movements.

The second step is to set up a macro for shooting at short distances without a sight (up to 50 meters). In this case, it is recommended to set the macro characteristic in the range from 0.6 to 0.63. This will help to avoid dispersion when shooting at short distances and achieve the maximum possible accuracy when shooting with a «sight».

The third step is if you need to shoot at long distances (from 100 to 150 meters) with 8x magnification enabled, the macro characteristic should be set in the range from 0.8 to 0.82. This will ensure shooting with minimal recoil at long distances and will improve accuracy, despite the increased size of the target.

The end result of this macro is smooth and precise control of the M39 weapon in the conditions of combat in the Rust game.