The Predators of the Chaos Legions are a legacy of pre-Heresy times. But now daemonic maws adorn every gun barrel and dark icons cover every surface. The Chaos Predator comes complete with all the weapon options the Predator can take, including lascannon and lascannon side sponsons.Source: Games Workshop
For many decades, the arts by which the powers of a psyker could be maintained medically into the half-life of Dreadnought sarcophagus internment eluded the Thousand Sons, just as it had many others of the Legiones Astartes who attempted the task. It was not until the mind of Magnus itself was focused on the issue, which he saw as part of the wider Librarius Project to establish firmly the place of the psyker within the Legiones Astartes, that a solution, albeit a difficult one, was created.
I’m jumping around a bit on the models, but added highlights to the Predators, Rhinos, and all their weapons.