I would help you clear this dungeon if you were on the same world as me. We are on the same data center for DF matchmaking, but I would probably fall into somebody else's group outside of my control.

Well the bees spawn in the same spot every time, so keep your eye on that and get everybody to smash them right away. If one survives long enough to start charging its Final Sting, you can stun it with a Brutal Swing, otherwise it hits you for massive damage even if you are a tank.

Then it's just a case of having everybody touch a glowing tile every time the boss puts Doom on you, and you're good to go.