This is the invasion of coruscant. I wanted to build a scene where I could use my phase 1 clones, and I found this battle that occured several months after the Battle of Geonosis.
About this creation
Count Dooku and one of his Dark Acolytes, Trenox, infiltrated Coruscant with an army of Separatist battle droids in a mission to destroy the Jedi Archives in the Jedi Temple. (wookieepedia)
new B-3 cortosis battle droids are fighting.
During the battle, Anakin met one of Count Dooku's Dark Acolytes, Trenox...He proceeded to the Jedi Archives and confronted and killed Trenox, but was delayed long enough for Dooku to steal at least one Holocron and escape. (wookieepedia)