Complex sentence: After that (and the resurrection of Optimus Primal as a transmetal), Tarantulas remained with the Predacons for a while, although he was always following his own agenda (even sabotaging a Predacon mission in order to gain a new lair).
Split into simpler sentences: After that (and the resurrection of Optimus Primal as a transmetal), Tarantulas remained with the Predacons for a while. Although, he was always following his own agenda (even sabotaging a Predacon mission in order to gain a new lair).