USSR

PART A. INFANTRY

1. Infantry Divisions

2. Infantry Brigades

PART B. CAVALRY

PART C. ARMOR

1. Pre-WW2 Tank Corps

2. Tank Brigades

3. Tank and Mechanized Corps and Armies

5. Independent Tank Units
Tank Battalion (Aug 1941) Tank Battalion (Nov 1941) Tank Regiment (Sep 1942) Tank Regiment (Jan 1943)
Tank Regiment (Feb 1944) Tank Regiment (Apr 1944)

6. Assault Gun Units
Assault Gun Regiment (Dec 1942) Heavy Assault Gun Regiment (Mar 1943) Light Assault Gun Regiment (Apr 1943) Medium Assault Gun Regiment (Apr 1943)
Light Assault Gun Regiment (Oct 1943) Medium Assault Gun Regiment (Oct 1943) Heavy Assault Gun Regiment (Oct 1943) Light Assault Gun Regiment (Feb 1944)
Medium Assault Gun Regiment (Feb 1944) Heavy Assault Gun Regiment (Feb 1944) Light Assault Gun Brigade (Feb 1944) Medium Assault Gun Brigade (Jan 1945)
Heavy Assault Gun Brigade (Mar 1945)

7. Reconnaissance Units.

8. Aerosled Units

9. Specialized Units

PART D. AIRBORNE

PART E. ARTILLERY

3. Mortar Units
Mortar Battalion (1941) Mixed Mortar Regiment (Jan 1942) Horsed Mortar Regiment (Apr 1942) Motorized Mortar Regiment (Apr 1942)
Motorized Mortar Regiment (1943) Mortar Brigade (Apr 1943) Independent Heavy Mortar Brigade (1944) Mountain Mortar Regiment (Nov 1942)
Mountain Mortar Regiment (1944)

2. Corps Artillery
Corps Artillery Regiment A (1939) Corps Artillery Regiment B (1939) Corps Artillery Regiment C (1939) Corps Artillery Regiment (early 1942)
Corps Artillery Regiment (late 1942) Corps Artillery Regiment (Jun 1943) Corps Artillery Brigade (Apr 1944)

3. Field and Heavy Field Artillery
RVGK Artillery Regiment (1939) RVGK Howitzer Regiment (1941) RVGK Gun Regiment (1941) RVGK Howitzer Regiment (Sep 1941)
RVGK Gun Regiment (Sep 1941) RVGK Army (Howitzer) Regiment (Sep 1941) RVGK Army (Gun) Regiment (Sep 1941) RVGK Howitzer Regiment (Apr 1942)
RVGK Gun Regiment (Apr 1942) RVGK Howitzer Brigade (Feb 1943) RVGK Gun Brigade (Feb 1943) RVGK Army Gun Artillery Brigade (May 1944)

4. Heavy Artillery

5. Artillery Divisions
Artillery Division (Oct 1942) Artillery Division (Dec 1942) 19th Artillery Division ("Heavy Artillery Division") late 1942) Breakthrough Artillery Division (Apr 1943)
Heavy Gun Artillery Division (Jun 1943) Gun Artillery Division (Oct 1943) Breakthrough Artillery Division (Oct 1944)

6. Rocket Artillery
Rocket Regiment (Aug 1941) Rocket Battalion (Dec 1941) Rocket Regiment (Jan 1942) Rocket Battalion (Jun 1942)
Rocket Brigade (Nov 1942) Rocket Brigade (Dec 1942)