Zombie Mode AA-12 Buster

Hello, i want to talk about the AA-12 Buster, myself being a zm player mostly, the gun feels a bit underpowered taking in consideration that it's a gun with 7 levels, I would love for this weapon to get a buff, more dmg or something new regardless of it's age, even if it's an old gun, still is a demanding gun, with 60 enchanced awaken jewels and 750 awaken jewels, I mean, the Fal Custom perform better with just 3 levels and so much easier to get from the zm ranked reward, also holy shotgun, even the vepr-12 feels stronger on some maps, the p90 frenzy lvl 7, feels like a level 7 gun on most of the maps, and actually outclass most of the guns, I hope someone will see my message and will think about it, cuz i'd really love for this gun to be a bit stronger and useful in every zombie mode.