1. Corps Support (2nd Field Force)

3 Aviation Combat Battalions (as List A48M)

1 Combat Support Aviation Battalion

3 Companies@ 2x OH-6A, 16x CH-47A Chinook

1 Air Cavalry Battalion (as List A50M)

2 Artillery Battalions@

BHQ: 15 AR sqds, 16 lorries, 8x M79, 8 GPMG
4 batteries@ 6x 105mm M101, 5x M79, 8 GPMG, 10 lorries

4 Artillery Battalions@

BHQ: 11 AR sqds, 4x M79, 1x M578 ARV, 6 GPMG, 15 lorries
3 batteries@ 4x M107, 7 GPMG, 3x M79, 4x M548, 4 trucks (or can be M110 with barrel change)

2 AA Companies@

CHQ: 2 trucks, 2 AR sqds, 2 GPMG
3 platoons@ 4x M42 Duster, 4 GPMG, 4x M79

2 AA Companies@

CHQ: 2 trucks, 2 AR sqds, 2 GPMG
3 platoons@ 4x Quad .50" M55, 4 trucks, 4x M79, 4 GPMG

2 Artillery Battalions@

BHQ: 11 AR sqds, 17 lorries, 14x M79, 7 GPMG
3 batteries@ 6x 155mm M114, 8 GPMG, 6x M79, 10 lorries

1 Artillery Battalion:

BHQ: 11 AR sqds, 1x M578 ARV, 15 lorries, 8x M79, 6 GPMG
3 batteries@ 6x M109, 7 GPMG, 3x M79, 6x M548

7 Construction Battalions: pioneers, bulldozers ?
8 Combat Engineer Battalions
2 Airborne Battalions (as List A52M)

2. Corps Support (2nd Field Force)

7 Aviation Combat Battalions (as List A48M)
1 Aviation Combat Support Battalion (as above)
2 Air Cavalry Battalions (as List A50M)

2 AA Companies@

CHQ: 2 trucks, 2 AR sqds, 2 GPMG
3 platoons@ 4x M42 Duster, 4 GPMG, 4x M79

3 Artillery Battalions@ 24x 105mm M101 as above
2 Artillery Battalions@ 18x M109 as above
3 Artillery Battalions@ 12x M110/M107 as above
1 Artillery Battalion: 18x 155mm M114 as above
7 Construction Battalions
3 Combat Engineer Battalions 

11th Armoured Cavalry Regiment

RHQ: 6x M577, 2x M113 ACAV, 1x M578, 4 AR sqds, OP/Air Liaison Team
1 Air Cavalry Troop: 48 helicopters
3 Armoured Cavalry Squadrons (battalions)@
SHQ (Bttn HQ): 6x M577, 3x M60 AVLB, 1x M88, 1x M578, 4x M113 ACAV, 4 AR sqds
1 Battery: 6x M108 or M109, 6x M548, 1x M577
1 Company:
CHQ: 2x M48A3, 1x M88 ARV, 3x M113 ACAV
3 platoons@ 5x M48A3

3 Troops@
THQ: 1x M577, 3x M113, 1x M578 ARV, 2 AR sqds
3 platoons@
PHQ: 1x M113 ACAV, 1(5 man) AR sqd, 1x M79
2 sections@ 2x M113 ACAV, 2(5 man) AR sqds
1 section: 2x M113 ACAV or (1969+) 3x M551
1 section: 1x M106
1 section: 1x M113, 1 AR sqd, 1 GPMG, 1x M67

3. 24th Corps Support

3 Artillery Battalions@ 12x M110 &/or M107 as above
1 Artillery Battalion: 24x 105mm M101 as above
1 (3 from 1969) Artillery Battalions@ 18x M109 as above
2 AA Companies@ 12x M42 Duster as above

4. Army Support

Up to:

8 SAM Batteries@ 6x 3-round HAWK launchers, 6x 3.5" M20, 6 GPMG, FC radars, lorries, 4 sentry dogs
2 Special Forces Groups@ 4x C-Teams@ 12x A-Teams@ 14 men, M16, CAR15, SMG, LMG, GPMG, shotguns, IRNF etc.
1 Australian Bomber Squadron: 8?x Canberra B20 (1967-71)
1 Test AA Platoon (1968+): 6x M163 Vulcan, 1x M113+minigun
1 Special Forces Squadron (1966-67): 14x CH-3C
1 Special Forces Squadron (1966+): 12x CH-34
1 Special Forces Squadron (late'67+): 14x CH-3E, 11x UH-1F, 4x UH-1P @ 2 minigun, 14 RP
2 Heavy Lift Companies@ 9x CH-54, 1x UH-1H
1 A/T Flight (May 1972+): 2x UH-lB/6x TOW

5. Notes

a) Radios are in all squads and AFV.
b) Infantry have 0-3x M72 disposable LAW per squad. ACAV squads have 1x M79 each.
c) Details of helicopter organisation are provisional.
d) Each Corps has at least one LRRP Company (as List A48M).
e) The 1st Field Force contains the 4th Infantry Division and 173rd Airborne Brigade.
f) The 2nd Field Force supports the 1st, 9th and 25th Infantry Divisions; 3rd Bde/101st Airborne; 199th Infantry Brigade, and the Australian Task Force.
g) The 24th Corps contains the 1st Cavalry, 23rd Americal and 101st Airborne Divisions; 1st Bde/5th Mechanised Division; and the 3rd Bde/82nd Airborne Division.