[RC4]

Regarding armour TO&E:

At the beginning the Armoured Regiments (Light Stuart-Humber-Staghound / Medium Sherman / Heavy Churchill) had 75 machines each:
Regimental Headquarters Troop (3 Tanks)
4x Armoured Squadrons (18 Tanks each)

Armoured Squadron
Squadron Headquarters Troop (3 Tanks)
5x Armoured Troops (3 Tanks each)

From 1/1955, the Armoured Regiments were reorganized, they dropped the Light/Medium/Heavy Regiments, there remained Independent Light Armoured Squadrons (14 Tanks each), Independent Armoured Car Squadrons (14 Armoured Cars each), no Heavy Tanks and the rest of the Tanks were Medium, just called Armoured, each Regiment having 44 machines:
Regimental Headquarters Troop (2 Tanks)
Reconnaissance & support Troop (7 Jeeps, see below)
3x Armoured Squadrons (14 Tanks each)

Armoured Squadron
Squadron Headquarters Troop (2 Tanks)
4x Armoured Troops (3 Tanks each)

Also, from 1/1955 the Pakistan Army started organizing Independent Armoured Reconnaissance Squadrons:
Squadron Headquarters Troop (2 Light Tanks or Armoured Cars or Tank Destroyers)
2x Armoured Troops (3 Light Tanks or Armoured Cars or Tank Destroyers each)
2x Reconnaissance & support Troops (7 Jeeps each)

Reconnaissance & support Troop
Troop Headquarters (1 Willys)
3x Reconnaissance & support Sections (1 Willys w/M1919 MMG+ 1 Willys w/M40 106mm RCL+ 3 men scout team each)

After the 1971 war the Pakistan Army started employing Armoured Reconnaissance Squadrons with full MBTs (8 in each Sqn), and from 1/1983 with M113 replacing the Jeeps, so:
Squadron Headquarters Troop (2 Tanks)
2x Armoured Troops (3 Tanks each)
2x Armoured Reconnaissance Troops (7 M113 each)

Armoured Reconnaissance Troop
Troop Headquarters (1 M113)
3x Armoured Reconnaissance Sections (1 M113+ 1 M901 or M113 w/TOW ATGM+ 3 men scout team each)

Thanks