The Mandalore Operation

"I am a Shadow Assassin, like my master, Darth Maricus, and you will perish before me."

- Siri Tokolighter betraying Hans Novastar.

 was a significant battle during the Shadow Conflict that took place on Mandalore. With Antimatter Squadron and Ganner Slarwalker closing in, Arek Saris (now Darth Maricus) and Siri Tokolighter successfully staged an ambush while recruiting the  Xux, and managed to escape with no casualties. Xux was the final piece needed in Varad Zagg's plan to form an army of resurrected and as such, the Mandalore Operation was a crucial victory for the Shadow Assassins.

Prelude
On the run since the Felucia Jailbreak, Saris had chosen to wait for the right moment to spring a trap on his pursuers, who sought to stop him from completing his objective of recruiting Xux on Mandalore. Ganner and Antimatter Squadron didn't know precisely what his objective was, but thanks to information from Dylan Antinunknown, they knew it involved the Death Watch on Mandalore.

The operation
Saris arrived ahead of the other groups and immediately made his way to a meeting with Pre Vizsla, who he immediately began to bargain with. While this happened, Ganner and Antimatter Squadron followed, with Ganner in a disguise allowing Ranulph Darkhitch to coordinate him with the rest of the team, who went elsewhere in the city to cover more ground. Just as Hans managed to locate Saris and Vizsla, Siri sprang the trap.

Siri cornered Hans on the roof of the building they had been watching from as Death Watch troops stormed the lower levels, overwhelming Blaze Terrant and killing him. Siri revealed herself to be a Saris' apprentice and a Shadow Assassin and attacked Hans, who managed to turn the tables after a scuffle threw them into traffic. At the same time, Ganner arrived and witnessed the very end of Saris and Vizla's dealings, where in exchange for a place in the new order Viszla allowed Saris to have 50 troops for a month, including Xux.

As Siri retreated to reunite with her master, Ganner attacked Saris and the two dueled through the apartment complex until Ganner slammed Saris down an elevator shaft, knocking him unconscious. Given a perfect opportunity to kill Saris, Ganner found himself torn between the morality of killing a defenseless enemy and the necessity of it. In this moment of indecision, Siri struck, impaling Ganner through the chest and leaving him to die as she escaped with her master.

Aftermath
Saris returned with his apprentice to Umbara, reuniting with Varad and Talzin to begin the final stage of their plan.

With little time and few options remaining, Ranulph and Hans contacted Dylan again, now aware of his position as leader of the The Brotherhood, and convinced him to help the team assault the Shadow Assassins directly in what would be known as the Eclipse of Umbara.

Trivia
Cade Slarwalker's meeting with Garrick Clyine happened at the same time as the Mandalore Operation, but the two events were unconnected.