Flight Stick Axis Sensitivity?

[AndyJWest]

From the manual (manual.pdf in your IL-2 folder):

ADDITIONAL IN-GAME JOYSTICK SETTINGS
Find and press the Hardware Setup button in the game’s Main Menu.You are now in the
Hardware Setup menu.Press the Input button.Here you can set up the following features for
your joystick:
•Dead Band is used to set a dead zone where small movements of the stick will cause
almost no reaction.This feature can be helpful if you are playing a flight simulator for the
first time or have the old type of joystick.If you are an experienced flight simmer,we
strongly recommend that you set Dead Band in the left position or very close to the left
position.
•Filtering allows you to set a digitized filter if your joystick has problems with adequate
reaction.
•You can select basic joystick axes and change their profiles by using Fine-Tuning in the
special table to adjust the stick reaction curve.Some joysticks need fine-tuning,but
most work correctly with our default settings.You can select the axis for fine-tuning in
the left combo box.
•To enable or disable the Force Feedback feature,set the Force Feedback switch to on or off.
•If you find that our initial settings were more appropriate than your changes,press the
Default button.All the settings will revert to default status.
•Press Back to quit this menu.Any changes made will be applied automatically.

AS for why the rudder axis settings don't show, I don't know. How are you controlling the rudder? Pedals? Twisty joystick?