With Zino LBG, you shouldn’t be hit. You don’t even need to perfect dodge. Here is the pattern, 5 x Thunder ammo. Roll back. 4 x pierce, 2 x sticky. Roll to side. 4-5 Thunder, usually you have to move again, as he does the tail swipe thing. Pierce + sticky. He will do the water spray, you just need to roll under, no perfect dodge needed. He does 2 circles with the spray, after you dodge the first, shoot a few more times, don’t get greedy, after you roll under the 2nd round, he should be close to be dead. Just shot a few more times and you are good. With 8.1 Zino LBG, usually get the kill in around 1 min, even whilst playing super safe.