Stone's platoon

Stone's platoon was an elite platoon of clone shock troopers led by Clone Commander CC-5869 "Stone" during the final year of the Clone Wars. Like many others, the platoon was sent to patrol the underworld of the planet Coruscant. The locations of Separatist spies were discovered, therefore Supreme Chancellor Sheev Palpatine ordered the Coruscant Guard to search for the infiltrators.

While on patrol of Level 1312, the platoon aided Jedi General Ria-Asan-Jiar and Jedi Commander Odessa Parfel in their pursuit of the Separatist spy, Kupa Selto. In the midst of the chase, Chancellor Palpatine enacted Order 66 to all the clone troopers of the Grand Army of the Republic, causing Commander Stone and his platoon to turn on Jiar and Parfel. After the skirmish outside of Reeva's Cantina, the platoon received major casualties but managed to overwhelm Jiar and kill her.

Description
As a platoon of the Grand Army of the Republic, Stone's platoon comprised of thirty-six clone shock troopers and Advanced Recon Force Scout Troopers divided into four squads. They were equipped with Phase II clone trooper armor and utilized All Terrain Reconnaissance Transports.

Patrolling the underworld
When spies of the Confederacy of Independent Systems began infiltrating Coruscant, Supreme Chancellor Sheev Palpatine took action by dividing the Coruscant Guard into patrol groups and spread them across the planet. Clone Commander CC-5869 "Stone" was put in command of a platoon and was dispatched to the lower levels of Coruscant. With the crime and poverty infested streets of the underworld, it was a easy place for spies to remain hidden. The platoon accompanied the Coruscant Security Force in searching for infiltrators which led them to Level 1312, where the known Separatist secret agent Kupa Selto was hidden.

Pursuing Kupa Selto
While on patrol near Reeva's Cantina, the platoon was informed that Jedi General Ria-Asan-Jiar and Jedi Commander Odessa Parfel were sent to Level 1312 to apprehend Selto. Stone prepared the platoon for their arrival and continued their patrol. When the Jedi arrived, they began investigating several bars until they arrived at Rheeva's Cantina, where they found Selto. Eventually, they chased him out of the bar and Stone led the platoon to aid the Jiar and Parfel.

Order 66
As the platoon moved in on Selto, Stone received a transmission from Chancellor Palpatine and both Jiar and Parfel could sense something was wrong. As they turned to face the clone troopers, Palpatine ordered Stone to execute Order 66 via hologram. In spite of his former loyalty to the Jedi, Stone had been implanted with a behavioral inhibitor chip that caused him to obey the command. Along with the rest of the platoon, Stone turned his blaster carbine on Jiar and Parfel without hesitation, believing that they were traitors of the Galactic Republic.

The platoon formed up around the two Jedi and began firing their blasters. When they began overwhelming them, Jiar used the Force to push the clones which gave them enough time to run away. Although their luck would quickly run out, as the clones began to quickly recover and continue their pursuit. Eventually, the platoon caught up with Jiar and successfully killed her while Parfel managed to escape.