Star Wars Republic Commando

Star Wars Republic Commando is a series of novels set in the Star Wars universe, which follow a group of elite clone troopers known as Republic Commandos during the Clone Wars.
The series begins with Republic Commando: Hard Contact, where the commandos are sent on a mission to rescue a group of hostages from a separatist stronghold. In Republic Commando: Triple Zero, the commandos are tasked with tracking down and eliminating a rogue group of droids who are working against the Republic.
Republic Commando: True Colors sees the commandos face a new threat as they struggle to complete their mission while dealing with betrayal and uncertainty within their own ranks. Order 66: A Republic Commando Novel takes place during the events of Revenge of the Sith and follows the commandos as they navigate the aftermath of Order 66.
Finally, Imperial Commando: 501st picks up where Order 66 left off, and follows the remaining commandos as they adjust to life in the newly formed Galactic Empire and try to uncover the truth behind their past and their role in the galaxy.