The rules that use the vocabulary item "non-combatant" are:
non-combatant copter
non-combatant copters
non-combatant helicopter
non-combatant helicopters
non-combatant helo
non-combatant heloes
non-combatant copter
non-combatant helicopter
non-combatant helo
non-combatant convoy
non-combatant copters
non-combatant helicopters
non-combatant heloes