Issues w/ Invert Controls for Aircraft/Pilots for PC Mouse & Keyboard Users....
It seems that the invert controls under Options > General, and Options > Mouse & Keyboard > Vehicles are a bit janky, or there's some less than ideal combo that works.
For aircrafts, when I don't select the invert look option, I'm unable to reverse the key binds for the mouse pitch up and down (bug, right?). So, I'm forced to reverse the keyboard's key bindings for pitch up and down. That would be fine, however, drones are affected by those invert controls. The reversed keyboard bindings work, however the mouse movement works against the opposite way (wherein moving the mouse up pitches the drone up instead of down).
At least for mouse and keyboard users, there should be an option to only invert mouse controls (i.e. turn it to ON), or at least allow users to change the mouse pitch up/down bindings. Perhaps there's some combination of ON and OFF that allows one to set the desired controls between the "Global Controls" and the "Mouse & Keyboard" invert controls options, but it's less than intuitive and I think it's better to change this. They seem to be either redundant, and/or they conflict (wherein the Mouse & Keyboard settings take priority over the Global one).
Options > General:
Options > Mouse & Keyboard > Vehicles: