BRIGADE COMBAT TEAMS.
Deployable forces are being re-modelled around Brigade Combat Teams (BCTs), creating
more self-sufficient tactical formations and providing more options for decision makers. BCTs
integrate the full range of capabilities but at the lowest possible level including artillery,
un-crewed aerial systems, cyber, air defence, engineers, signals and logistical support. New
BCTs include 12 and 20 Armoured BCTs, the new Deep Recce Strike BCT, 7 Light Mech BCT
and 4 Light BCT.
The above is from Future Soldier, I thought it worth quoting as its an illustration of the nonsense in that document. To start with the BCTs are not self-sufficient rather they contain only the core of the brigade, everything else has to be allocated either from within 3 Division or from the wider Army. This includes artillery, un-crewed aerial systems, cyber, air defence, engineers, signals and logistical support. The BCTs can only integrate capabilities at the "lowest possible level" if they are first allocated.
In truth the BCTs are a sort of half way house between independent Brigade Groups and Brigade level Battle Groups. Whether that means they have the advantages of each organisation while minimising the disadvantages or have the disadvantages while minimising the advantages is an interesting question.