UK Organisation in WW2

British Infantry Battalion (1939-45)

  Battalion Headquarters [3 Officers, 30 Enlisted]
    1 x 7.7mm LMG

  Support Company

    Company Headquarters [1 Officer, 8 Enlisted]

    Carrier Platoon

      Platoon Headquarters [2 Officers, 6 Enlisted]
        1 x 7.7mm LMG
        1 x 15 cwt Truc
        1 x Universal Carrier

      4 Infantry Sections
        3 x 7.7mm LMG
        1 x 2" light mortar
        2 x .303 cal Rifle (Assistant MTR Gunner)
        1 x .55 cal AT Rifle (39-42), or 1 x PIAT (42-45)
        2 x .303 cal Rifle (Assistant ATR/PIAT Gunner)
        3 Universal Carriers

    Mortar Platoon
      1 Officer
      3 Observation Post Teams
      6 x 3" Mortar
      12 x .303 cal Rifle (Assistant MTR Gunner)
      3 x .55 cal AT Rifle (39-42), or 1 x PIAT (42-45)
      6 x .303 cal Rifle (Assistant ATR/PIAT Gunner)

    Engineer Platoon [1 Officer, 21 Enlisted]
      Flamethrowers
      Demolition charges

    MMG Platoon (sometimes included) [2 Officers, 38 Enlisted]
      4 x Vickers MMG
      8 x .303 cal Rifle (Assistant MMG Gunner)

    AT Platoon (1942+) [1 Officer, 31 Enlisted]
      4 x 6pdr AT Gun
      4 x Tractor

  4 Infantry Companies

    Headquarters
      2 x .38 cal Pistol
      2 x .303 cal Rifle

    Company Headquarters Section
      9 x .303 cal Rifle

    3 Rifle Platoons

      Headquarters
        1 x .38 cal Pistol

      Platoon Headquarters Section
        1 x 2" light mortar
        2 x .303 cal Rifle (Assistant MTR Gunner)
        1 x .55 cal AT Rifle (39-42), or 1 x PIAT (42-45)
        2 x .303 cal Rifle (Assistant ATR/PIAT Gunner)

        3 Rifle Squads
        1 .45 cal SMG (40-41), or 1 x 9mm SMG (41-45)
        1 x 7.7mm LMG
        2 x .303 cal Rifle (Assistant LMG Gunners)
        6 x .303 cal Rifle

Infantry Company variation (42-45)

  Any squad:
    4 x 9mm SMG
    1 x 7.7mm LMG
    2 x .303 cal Rifle (Assistant LMG Gunners)
    3 x .303 cal Rifle

British Independant Commando Company (1940)

[20 Officers, 270 Enlisted]
  Company Headquarters [8 Officers, 64 Enlisted]

    Headquarters and Staff [3 Officers, 15 Enlisted]
      1 x Car
      Motorcycles for couriers

    Service Section [30 Enlisted]
      1 x 30 cwt Truck

    Sapper Section [1 Officer, 17 Enlisted]
      Demolition Charges

    Medical Staff [1 Officer, 6 Enlisted]

    Armorers [4 Enlisted]

  3 Platoons [4 Officers, 66 Enlisted each]

    Platoon Headquarters [1 Officer, 8 Enlisted]
      1 x Bren LMG

    3 Sections [1 Officer, 18 Enlisted each]

      2 Rifle Squads

Special Services Brigade (1940)

  5 Battalions [1000 men each]

    2 Commandos [500 men each]

      Headquarters
        Demolition Charges

      10 Troops [50 men each]

        Troop Headquarters [4 men]

        2 Assault Sections [23 men each]

          Section Headquarters

          Rifle Section

          Bren Section
            1 x Bren LMG

British Army Commando (1943)

[461 men]
  Commando Headquarters [92 men]

    Headquarters [4 men]

    Staff and Drivers [67 men]

    Signal Platoon [21 men]
      1 x Radio

  5 Rifle Troops [66 men each]

    Troop Headquarters [6 men]
      1 x Bren LMG
      Demolition Charges

    2 Section [30 men each]

      Section Headquarters [2 men]

      2 Sub-sections [14 men each]

  Weapons Troop [39 men]

    Troop Headquarters [6 men]

    3" Mortar Section [17 men]

      3 Mortar Crews [3 men each]
        1 x 3" Mortar

      Drivers and Support [8 men]
        3 x Universal Carriers

    MG Section [16 men]

      2 MG Crews [3 men each]
        1 x Vickers MMG

      Drivers and Support [7 men]
        2 x Universal Carriers

Standard Special Services II40 Brigade (Royal Army Commandos) (1943)

[461]
  Commando Headquarters [92 men]
    3 x Bren LMG
    4 x Radio

  Heavy Weapons Troop [39 men]

    Headquarters
      3 x Bren LMG
      2 x Radio

    Mortar Section
      4 x 3" Mortar

    Machinegun Section
      3 x Vickers MMG

  5 Troops [66 men each]
    1 x Sniper
    1 x Radio
    3 x Bren LMG
    1 x 2" Light Mortar

Royal Marine (RM) Commando (1944)

[431 men]
  Headquarters Troop [92 men]
    1 x Radio

  5 Assault Troops [60 men each]

    Troop Headquarters [6 men]

    2 Sections [27 men each]

      Assault Sub-section [11 men]
        1 x Bren LMG

      Support Sub-section [16 men]
        1 x 2" Light Mortar
        Demolition charges

  Weapons Troop [39 men]

    Troop Headquarters [6 men]

    3" Mortar Section [17 men]

      2 Mortar Crews [4 men each]
        1 x 3" Mortar

      Drivers and Support [9 men]
        2 x Universal Carriers

    Machinegun Section [16 men]

      2 MG Crews [16 men each]
        1 x Vickers MMG

      Drivers and Support
        2 x Universal Carriers