How about Party and Expedition?
For the races, consider the tractor-beam effect: only big ships can tractor-beam smaller ships. Assuming some unit is going to have the "tractor beam" or "repulsor beam" damage type (perhaps a Grappler, Wind-Mage, or somesuch?) you might want to have the vehicle sizes set up properly... how about something like this:
Orcs are 40kT components and their "party/expedition" hulls are 200kT - 2000kT (5 - 50 orcs)
Humans are 30kT components and their "party/expedition" hulls are 90kT - 900kT (3 - 30 humans)
Elves are 20kT components and their "party/expedition" hulls are 40 - 400kT (2 - 20 elves)
This way you get the benefits of large parties for orcs as well as the proper sizing of individual characters!
