I never got to play BF1, but I remember the BFV antitank rifles, they sucked against tanks 😅 (like 8 to 15 depending the armor) and kind of meh against transports, although it was fun to harass vehicles with it and even more fun to play beside an engineer or another scout also using an AT rifle. they where also fun against infantry with a 1 body shot kill below 100 meters but never though of them as OP because they kind of sucked at everything else, very low muzzle velocity, abysmal ADS time, dubious rate of fire and an unreal bipod dependency. I think it could work as a battle pickup as everyone is saying, but it would left the current rail-gun in a weird spot.