I never see these guns in the crucible unfortunately. Even myself, I have a few that have good rolls on them but they can't compete because of the extremely poor stability on them.
Hoping Bungie can look at these guns and make them perform better in the crucible.
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I have a Lyudmila-D with counterbalance/headseeker/hand laid stock and it's a very effective weapon. The main problem with Hakke pulse rifles is that they're heavily dependent on perks, mainly counterbalance. But if you can get a roll like this, you'll have a damn fine rifle.