Each WWII MG42 had about 6 men, IIRC - gunner, man with spare barrel and stuff, man with tripod, three with ammo. No LMG like the Bren.

Bren had gunner and one other with the spare barrel and mag box, although the rest of the section should have each carried two Bren mags IIRC. The Bren was part of the infantry section.
One up from there was the Vickers.