Hi Rayds,
The way the pedals are supposed to work is:
The 'tip' of the pedal is like the gas pedal of a car - and each of the 2 pedals is independent. This should be mapped to "left toe brake" and "right toe brake" and provides differential individual braking on the main gear of the aircraft, which really helps tight corners.
But also if you press the bottom of one pedal in the other moves out - they're linked. This shows up as ONE axis and should be linked to "yaw."