Independent MG Companies provided fire support for the infantry brigades of Armoured Divisions and Indedepent Infantry Brigade Groups. Earlier establishments for Infantry Brigade Groups did not include the Flamethrower Platoon.
Several regiments provided companies as Independent MG Coys, including the 4th Bn, Royal Northumberland Fusiliers. At one time, this Battalion was completely broken down to provide Ind MG Coys and the Bn HQ performed an administrative role only.
The Indep MG Coy was mechanised and used either 15-cwt trucks or Universal Carriers.