We all know the consequenses of Emperor Palpatine Order 66, and the casualties it caused in the Jedi Order. Among the kill list is Jedi Master Ki-Adi Mundi, who after surviving a battle with Grievous is killed in the frontline by his Galactic Marines while assaulting a brige on Mygeeto.
About this creation
This is the moment that Ki-Adi clones betray him.
Commander Bacara is a costum minifigure from Minifig.com and the chaingun is from Brickarms.