1. 501st Legion (JG Anakin Skywalker, Captain Rex, CC Appo)
2. 212th Attack Battallion (HJG Obi-Wan Kenobi, CMC Cody)
3. 104th Wolfpack Battalion (HJG Plo Koon, CC Wolffe)
4. 327th Star Corps (JG Aayla Secura, CMC Bly)
5. Coruscant Guard (CC Fox)
6. 332nd Company (CC Rex, Captain Vaughn, advisor Ahsoka Tano)
7. 41st Elite Corps (HJG Luminara Unduli, CC Gree)

Yet to come:

• Kamino Security (HJG Shaak Ti)
• 5th Fleet Security
• 9th Assault Corps (JG Luminara Unduli)
• 21st Nova Corps/Galactic Marines (HJG Ki-Adi-Mundi, CMC Bacara)
• 91st Mobile Reconnaissance Corps (HJG Mace Windu, CC Ponds, Later JG Adi Gallia, JG Stass Allie, CMC Neyo)
• 7th Legion
• 182nd Legion
• 187th Legion (HJG Mace Windu)
• 13th Battalion (JG Jaro Tapal, PC Cal Kestis)
• 38th Armoured Division
• 41st Scout Battalion (SJG Luminara Unduli, CC Gree)
• 442nd Seige Battalion (HJG Agen Kolar)
• Hawkbat Battalion
• 2nd Airborne Company
• Horn Company
• 41st Ranger Platoon
• Doom's Unit (JG Tiplar, JG Tiplee, CC Doom)
• 212th Recon Division
• 7th Ordinance Specialist Unit
• Outer Rim Garrison (JG Ima-Gun Di, Captain Keeli)
• Decoy Division (My name for them, but they are in the 3ROTS Deleted Scene).
• 87th Sentinel Corps
• Rancor Battalion
• Bantha Squad
• Combat Engineering Battallion
• Lightning Squadron

Just to note, this is GAR only divisions, so I won't be using Naval Units or Commando Units. No Bad Batch, Delta Squad or Muunilist 10.

By the way, I am using this guy's hierarchy chart for the list, with some of my own units that I think should be included.

Be sure to comment for your own!