An Australian rifle platoon of WW1 being addressed by its Platoon Commander, Lt Rupert, Frederick Arding MC. in France. Lieutenant Rupert Frederick Arding Downes MC addressing his platoon from B Company, 29th Battalion, near Warfusee, France, in August 1918.
Although the following training pamphlet is (now obsolete) it is presently available for download from: https://www.army.gov.au/sites/g/files/net1846/f/mlw_2-1-2_the_rifle_platoon_1986_full_obsolete_0.pdf
This publication still has quite a bit of useful information contained within it.
Military Manuals ADF Manual of Land Warfare Pt2 Infantry Training - Vol1 Inf Ops Pam2 The Rifle Platoon
Australian Defence Force Training Pamphlet: The Infantry Rifle Platoon.