You fight through a long & lenghty map, get a few close calls when specials & elites face you combined and then you come to this boss with great ost and…he dies within a minute or less, it is a sad letdown.
With enough coordination you can burst past a shield phase twice making this fight but a minor hurdle.
(sidenote: whilst i love being tanky, the ogryn shield special move shouldn’t make you immune to all of the captain’s moves, it trivializes an already easy fight even more)
I don’t think they are too squishy, but too simplistic. Calling them a boss is kind of an embarrassment to bosses. Honestly, they should beef up the HP, take away the shield, and add actual mechanics, because the way they are right now promotes dropping a medi-pack and blasting them as quickly as possible.