Laser boss should be nerfed. This is single dungeon that i cant beat. I tried it many times with decent people and with great dps, without any problems or deaths on trash packs or first 2 bosses. But I never been able to pass laser dwemer boss. It`s just impossible to survive with 3 or 4 beams, someone is dying there with 100% chance, then others try to res and die too, from adds or beams, it doesn`t matter.
And don`t tell me about "git gud", learn mechanics and other crap like this. I play only with pugs through group finder and I was able to beat all dlc dungeons and almost all hard modes with various characters, but Frozen Vault is madness.