It used to be op a long time. They nerfed it to be useless except as a tool to own MG42s by avoiding suppression. Now that everyone is busy spamming out 5+ grens with no mg42s it's just useless except for baiting your opponent into riflenading squads you'd retreat anyway.
Even with normal BOs with MG42 it would still be useless because of weapon profile which makes sure conscripts won't hit anything smaller then a whale unless they stick a rifle in its butt.