The rise of interest in ilclan era has opened the door to superheavy battlemechs, Could you clarify who is a pilot for the calculation of pilot skills for the purposes of calculating BV?

Superheavy tripod battlemechs have 3 people in the cockpit, a dedicated pilot, a dedicated gunnery officer and a technical officer (pg158 interstellar operations alternative eras).

The BV multiplier for pilots is found by averaging the skills of the "pilots' skill" (pg188 interstellar operations: alternative eras) "To calculate the Battle Value for a Tripod ’Mech with variable skill ratings (see p. 314, TM) use the average of the pilots’ Piloting and Gunnery Skills, respectively. Round normally when determining the average score.

Who is considered a pilot in that calculation?

Thank you