Tyzuris
Primarch to your glory& the glory of him on Earth!
Assume a battle barge carrying three companies of Novamarines and detachments from the 1st and 10th companies totaling roughly 400 Novamarines + HQ + a few dozen specialists like Chaplains, Librarians, Apothecaries and Techmarines (and assume this is post-Primaris introduction so there are both Firstborn and Primaris Marines in this force) comes to orbit of Geonosis and replaces the Clone Troopers in the Battle of Geonosis.
They have a goal of saving the Jedi and taking out the political and military leadership of CIS before they have a chance of escaping.
And assume a bonus goal but not a necessary one which includes Novamarines capturing CIS leaders instead of eliminating them.
They have a goal of saving the Jedi and taking out the political and military leadership of CIS before they have a chance of escaping.
And assume a bonus goal but not a necessary one which includes Novamarines capturing CIS leaders instead of eliminating them.