The Predator was a race born to fight. They had a lot of experience and talent be it in solo fights or group fights.
After repeated hindrances from the humans, the Arbitrator had realised that the situation on Uplos was probably about to go out of his control, so he did not hesitate to issue the order to deploy three smaller sub-ships to accelerate ahead to Uplos in advance.
Thanks to their size, these three sub-ships could shuttle through smaller and more unstable wormholes that acted like shortcuts. Of course, this also meant taking a huge risk.
It was for this reason that the Predators on the sub-ships were not very important Predators. Each sub-ship carried fifteen people, twelve of which were combat personnel and scouts, while three were researchers. The role of the researchers was to activate the defensive line of the Uplos asteroid belts, so as to prevent the humans from forcibly invading with a large fleet of spaceships.