[Mobhack]

British platoons have 3 rifle sections and an HQ/Support section usually.

HQ section has the commander's team (including radiomen), Pl Sgt, 2in Mortar team (or extra LMG sometimes), A/T team.

Rifle sections have a gun group and a rifle group - in some OOBs as separate elements, but most have unitary sections in SP organisations.

So 4 sections in British infantry platoons, till the 1980s when the 2 fire team org appears with the SA-80 weapon system.