I wrote a 5 paragraph reply off the cuff on my stupid phone and timed out posting it
I can the see the shield-teams as a stacked pavisade, of enormous shields, protecting waves of dwarves. Specialized (and strong!) dwarves are trained for years to work in unison, like a moving pangolin or armadillo.
I can see a "Belly Brigade" shock-team amidst the killing stroke squads. Suicidal, berserker dwarves who literally attempt to rip open the downed beast's underside/belly, releasing it's foul wave of viscera, blood, acid bile. They wade in, and continue slicing and dicing...some even make it out alive again.
Don't forget the long-distance trebuchet brigades, while the dragon is still air-borne
Will add more thoughts soon!
Also, you have inadvertently began your Dwarven Guild quest by posting a dwarven-related thought in the forums. Congrats!
You're getting closer and closer to Dwarfdom, whether you like it or not