WWII special assault rifles built for the SAS only

[CINDERS]

Scrounging kit of anyone that had something you wanted

Of which the Australian troops excelled through both wars in fact you did not even have to be the enemy to be scrounged off........

Also undated pic of British soldiers training with the FS knife it does not say if they were Commandos or SAS

I guess Lee Enfield over the passage of time that allot of the groups were incorporated into the system as the training of individuals encompassed skills of other trades that way they have an all in one combatant specialist.
If you look at the SAS now they just about do it all the US has the SEALS even the latter are broken up in the smaller groups with even more specialized skills set I think it is the DVGRU it would probably get down to the good old bean counters as why have 5-6 teams when you can have just 1 or 2 just incorporate a bigger spread of specialized training.