Use them? Hardly any. Actually equipping them though there are a numer that do. Thats why I would love for the "4x scope" to effectively just be a really cool looking paper towel tube on top of my gun. This is why I pushed for an orky gun customization option early in development. I want sweet looking weapons with mods that effectively add nothing as wdll as some that are functional. I would love a skin choice for our mods. Like 5 different drum mags or an option to attach them in a random location. I actually love how the sparky slugga graphic glitched out and has the ammo clip IN the handle of the gun.
I actually use the rodeo shoota quite alot, Like seriously it out shoots storm bolters (my experiance any way i dont really know on the stats) but yea seriously if i get the jump on the enemy in a single clip i can take out 3 SM 4 on a push depending on situations, long range its ok as well but dont expect to down anyone cause after the 3rd bullet good luck!