The scooter only served as transportation for the gun. You would remove it and the mount from the vehicle, assemble the gun in a hidden position and use it to ambush enemy tanks or strike strong points.
This was an alternative to schlepping a 103 lb (47 kg) gun and mount around on foot, which would be far less pleasant.
Also a hell of a lot faster to get out of Dodge than packing the gun up and running on foot when those tanks or strong points decide to start shooting back.
The scooter only served as transportation for the gun. You would remove it and the mount from the vehicle, assemble the gun in a hidden position and use it to ambush enemy tanks or strike strong points.
This was an alternative to schlepping a 103 lb (47 kg) gun and mount around on foot, which would be far less pleasant.
Also a hell of a lot faster to get out of Dodge than packing the gun up and running on foot when those tanks or strong points decide to start shooting back.