VsQs
VsQs was the third moon of the planet Cameron, with a very strong gravity field. An investigatory team was sent from Cameron to investigate the landing of an unidentified spacecraft (Optimus Prime's funeral barge), but was slaughtered by a predatory creature re-created by the Creation Matrix. Only one survived long enough to use an escape pod, sending him to the planet Pequod.
This survivor died when he was eaten by a dying Klud, whose memories led a contingent of Decepticons led by Thunderwing (searching for the Matrix) to VsQs. There, they clashed with a group of Autobots who were also searching for the Matrix, and they both confronted the predator. Thunderwing emerged victorious, claiming the Matrix and leaving the severely de-powered Autobots on the moon.