reason why you can play 'for free'

target of play 'for free'

Baxial
Talaxian Frighter 7 / 4 / 6 
No Staffing/Command requirements
Restriction Box: Has no transporters.
Tractor Beam
Special skill: May report for free to Neelix's location.
May report for free to Neelix's location.

Baxial

Fesarius
Unknown Class 9 / 12 / 18
 Restriction Box: Has attack restriction.
Tractor Beam
Special skill: Your Balok may report aboard (for free).
Your Balok may report aboard (for free).

Balok

Son’a Shuttle
 Son'a Shuttlecraft 5 / 7 / 6
No Staffing/Command requirements
Restriction Box: Attributes all - 3 unless Son'a in crew.
Standard Equipment
Special skill: Transporter Drones may report aboard (for free, once each turn).
Transporter Drones may report aboard (for free, once each turn).

Transporter Drones