I suppose you could use almost any surplus soldier body and add left over arms/weapons. The Frostgrave Cultist set has a selection of "undead" heads and body parts thus if you have the StG44s as imitation AK-47s a box of Cultists would give you a force of ragged undead soldiers. Depends how picky you are abot the weapons. Incidentally the WW2 MG42 is virtually identical to the current MG3.
I used ragged Frostgrave cultists armed with surplus Warlord WW2 German assault rifles (StG44) to make a force for my Zona Alfa games.
These are cultist bodies, WW2 Russian heads and WW2 German (and some other) weapons
