Because fire is so dangerous in the contained, oxygen-filled Artemis and in order to put out a fire you have to know how to use air valves etc, EVA masters and EVA trainees are automatically volunteers.
Known Volunteers[]
Bob Lewis - EVA Master
Dale Shapiro - EVA Master
Sarah Gottlieb - EVA Master
Marcy - EVA Trainee
Arun Gosal - EVA Trainee
Jazz Bashara - EVA Trainee