Well we failed the 34 PoE last night too. Only had 2 Ghally's so couldn't use that cheesy method and trying to do it the proper way is the most frustrating and difficult/cheap thing in the entire game by a huge margin.
The mechanics of the fight are fine, but as others have said that damn enemy just doesn't show itself, or teleports around and with all those damn hobgoblins shooting at you the hardest part of the fight is getting into the open long enough to find that enemy and kill it.
I can see how it could be done, but there is zero room for even the smallest error from anyone on the team. On the right side, if you get the enemy down he tends to spawn on that side again straight away, so you can keep taking him out every 10 seconds to keep the buff on constantly - if it stacks? you could build up 3-4 of them with each character then you can safely just take the boss out without worrying about the bubbles for a few minutes.
But, it's just too random to attempt that way - and those major hobgoblins simply take too much shots to take down and there are about 6 of them, on top of all the normal ones.
Every time our team has done this we haven't relied bursting the boss down with Gjallarhorn. For the periods where we couldn't find a goblin we relied on a combination of shotguns and supers. 6-7 rounds from Found Verdict will break the shield, provided you have at least some shields before the red shield appears you should be able to break it reliably before you die. It usually only takes us 1-2 attempts to finish this boss.
You shouldn't be complaining about shotgun ammo, you should be rolling in special ammo synths by now
