[Idea] Vehicle's Gunner Loadout

Can you please have an option or change the gunner's loadout to the one who is using it not according to whoever is driving it. For example, the player who hopped on the driver has a tank loadout with LMG in gunner position, then the player who hopped on the gunner position has a HMG or Grenade Launcher, use HMG or Grenade Launcher since it's the player on the gunner position will be using it not the player who is driving it.