Even though this is Infinity's tutorial mission, it counts as Mission 00 of the campaign, indicating that this is most likely Reaper's training mission before joining Bone Arrow Squadron.
The player can replay this mission as many times as they want, whether they have fuel or not; however, it does not count for anything. Additionally, the player can choose to spawn into the middle of the mission simply for the target practice rather than the control tutorial.
This mission counts for the player's total kills in their Stats, but only if the player completes the mission by letting the timer run out.
This can be used to help unlock the "Countless Kills" and "Incalculable Amount of Damage" trophies.