I need about 35% on multikill medals and then I'll have it unlocked but I have seen videos and it doesn't look very consistent like you say.
It’s not I got it over a month ago and tied using it a bunch then. Hated it ended up dismantling it. I got it out of my collections this week to try it out since they said they buffed them in the patch notes. It is still a useless weapon. I dismantled it again. The militias birthright I used to get it is way better.