Have some weapons do more damage to guardians that are holding certain weapon archetypes. Specifically to counter special ammo weapons. For the most part special ammo weapons usually are ohk weapons, and they have to remain so because of their limited ammo source. However for the most part, they have killed off certain weapons. E.G. shotguns killed smgs. Scouts had the final nail in their coffin put in by snipers. (The buff to aa cone size helped) So how about those primary weapons that got killed off receive a damage buff against guardians wielding the weapons that did it. E.G. smgs do more damage against guardians with shotguns equipped. Scouts do more to snipers. Etc. Etc.