Panzershrek, Bazooka and PIAT. These weapons design to shoot vehicle and almost make no damage to infantry.
(Probably PTRS too even it has some effective to against infantry.) It not make sense when infantry engage to enemy tank but they have to reload their anti tank weapon because they had shoot them to infantry for nothing. And every anti tank guns in this game now they have "Prioritize vehicles" (I can remember when they didn't have it, it was very frustrate.) I want anti tank infantry have this ability too.