Clone troopers are genetically modified humans cloned from bounty hunter Jango Fett. Under the command of the Jedi Order, clone troopers fight for the Galactic Republic during the Clone Wars, which takes its name from the troopers. At the end of the Wars, they are forced by a surgically implanted inhibitor chip to carry out Order 66 and slaughter the Jedi.
https://en.wikipedia.org/wiki/Arc_Trooper
Tal, after surviving a few battles as a shinie, ultimately earned the title of ARC trooper and later began working in Rancor Battalion as a Captain under Colt's command. However, this was not without a cost; Tal's fellow brother, Source, was seemingly killed in action during a dangerous mission.
http://clonewarsfannon.wikia.com/wiki/ARC-3827
I've always made it in my head into: ARC troopers are the sort of Rangers of the modern US Army, while Clone Commandos are the Special Forces like Delta Force. To be completely honest, I have no clue if this is accurate and I can't seem to find any source on which is the more skilled/capable group.
https://www.reddit.com/r/StarWars/comments/23ty40/are_arc_troopers_or_clone_commandos_more/
During the Clone Wars, an ARC trooper served under the command of the Weequay Jedi General Sev. In the war's final year, the clone trooper accompanied Master Sev and his Padawan Joc Sah to the Outer Rim world Ragmar V, which was considered a vital staging planet for a planned Republic attack on a Separatist base.
http://starwars.wikia.com/wiki/Sev%27s_ARC_trooper
Arc troopers were trained to think more individually, think like Jango, but also trained to lead. Clones are people however, and it isn't just a case of which specialisation is better. Clones think differently from each other, so it depends on the clone, not just the training.
https://www.reddit.com/r/StarWars/comments/23ty40/are_arc_troopers_or_clone_commandos_more/
Got it, sir.. -Tal and ARC Commander Colt, during the Third Battle of Kamino. ARC-3827 (originally known as CT-3827), nicknamed Tal (which stands for Talk A Lot), is a decorated Advanced Recon Commando Captain who currently serves in the Coruscant Guard under the command of Clone Commander Fox.
http://clonewarsfannon.wikia.com/wiki/ARC-3827
A decade later, the army would come to light, and Yoda deemed them worthy of aiding the Republic against the Separatist threat in what would become known as the Clone Wars. While the Jedi would command the clone troopers, the Grand Army of the Republic had ranks of its own. Let’s meet the captains and commanders that lead their troops into battle! Commander Appo (CC-1119) joined the troopers of the 501st Legion as a sergeant, and fought under Jedi General Pong Krell on Umbara.
http://www.starwars.com/news/kaminos-finest-captains-and-commanders-of-the-clone-army
He was among the one hundred clones who were personally trained by Fett as Advanced Recon Commandos to serve on behalf of the Galactic Republic. When the Clone Wars were initiated in 22 BBY, the ARC trooper served in the Grand Army of the Republic and was eventually placed under the command of the Jedi General Sev. The ARC trooper commands his troops to attack Joc Sah, Gaan, and their allies.
http://starwars.wikia.com/wiki/Sev%27s_ARC_trooper
Captain Rex, CT-7567, leads Torrent Company of the 501st Legion, often under the command of Jedi General Anakin Skywalker and Jedi Commander Ahsoka Tano. He first appears in The Clone Wars film and its related television series, and he is the primary clone trooper character of the series.
https://en.wikipedia.org/wiki/Arc_Trooper
He was drafted as a test pilot for the ARC-170 starfighters by Jedi General Plo Koon, and was with him at Cato Neimoidia when Order 66 was issued, prompting Jag to shoot down Koon. Commander Jet (CC-1993) served with Jedi General Ki-Adi-Mundi, and was part of a mission to reconquer Geonosis in 21 BBY.
http://www.starwars.com/news/kaminos-finest-captains-and-commanders-of-the-clone-army
what jedi commands the arc troopers
An ARC trooper served under the command of the Weequay Jedi General Sev. The Weequay Jedi General Sev commands the Arc troopers.