The Orion Pirates specialize in capturing others' ships. Their own ships generally are comparatively light. The Orions can build a number of cloaking ships, as well as gravitonic accelerators. Orion can tune their beam weapons so that they kill thrice as much crew as normal beams, in order to capture the ships instead of destroying them.
The Orions can rob enemy ships. They can also board fuelless ships. Unfortunately, they cannot clone ships.