Last time I checked Volks did not have smoke grenades.
Neither do cons, Tommies, sappers, rifles or combat engies. 1 faction has a few squads with smoke, 2 have a doctrinal unit with smoke.
Yknow what volks DO have? The ability to force any MG away with 2 clicks of a button and deny any prepared position with the same. Enemy garrison? Burn it down! Sand bags? Burn. Trench or fighting pit? Yup.
Volks are the best equipped of all units in game arguably to assault an enemies position with good at all ranges weapons and the ability to burn out strong points, even without smoke..