OK time to completely re-do panzer grendiers imo, and make them a true specialist in anti-tank.
Panzer Grenadiers 2019
A dedicated tank hunting squad from the get go, able to only survive against infantry but very adept at tank busting.
New cost: 280mp
Main weapon load out: 1 x stg44, 2 x kar98, 1 x panzerschreck (1.2x damage and pen of normal schreck).
Moving speed: 0.8x that of normal squad (to stop blobs marauding in team games, and to simulate size of panzershrecks.
Abilities:
riegel mine - to cripple tanks and then allow schreck to finish them off.
tank awareness - see tanks moving in fog of war for a limited time, has to stay stationary.
veteran ability - 20mu smoke grenade: to allow them to narrow gaps and survive suppression vs. anti-infantry tanks
Please, no, that will just turn them into cheaper AT stormtroopers. They just need very small changes like smoke or mechanized passive and they'll be perfect. Would be interesting to see them have riegels doctrinally though.