That specific champion to which I know for a fact you are referring to has always been bugged and will basically be in a state of non stun buy can be stunned multiple times. Its by the heavy shank and sniper vandal at the halfway point. Best bet is to stun, 1k him and shoot his head to stop regen and hopefully catch his health before it starts to regen.

I would lose the rocket launcher for a sword. Overload champions have to be fought in a VERY specific way because their mechanics are basically broken. 1. You need a high burst-damage primary weapon (usually a bow or a HC) to stun them. If you use anything else, you run the risk of them shrugging it off. Because they don't stay solid long enouth to stun. Especially Captains. (So you've got that...but bows work better if they have explosive rounds) 2. Then you need to hit them with a very high-burst damage heavy weapon in order to kill them before they recover. If you don't, then they'l start to heal...and spam their teleportation and damage. Making them impossible (basically) to kill. So I'd ditch that rocket launcher (to inconsistent) and equip either a sword or Sleeper Simulat if you have the fusion/linar fusion rifle class item mod equipped. I ran E15 last night to get No Back Up plans. I ran Solar Titan (which gave me a ranged super and solar ability attacks to weaken champions. Then I ran a kinetic bow....Gnawing Hunger (void burn) and then Titan classic-specific sword with Vorpal and major enemies mod. A heavy and a light attack will take out a stunned Overload Captain...while a heavy plus 2 or 3 lights attacks will take out a stunned Minotaur.

If you're a hunter try using bottom tree void. That's what I did. After that use ascendancy and shoot once. He'll die after that.

If its any help, that one captain in concealed void usually dies after a lasting impression code duello and a few headshots with erianas (solar burn op). Just gotta time the headshots to line up with lasting impression explosion. You want to get the captain down to like 2/3 health by the time the rocket explodes.

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