Complex sentence: "Avner" is then put under Bastila's command on the "Endar Spire", but the ship is attacked above the planet, Taris, and is destroyed, but Avner and another soldier, Carth Onasi escape to the surface.
Split into simpler sentences: Avner is then put under Bastila's command on the "Endar Spire", but the ship is attacked above the planet, Taris, and is destroyed. But Avner and another soldier, Carth Onasi escape to the surface.