A weremoose annihilated my military and infected three dwarves before transforming back into a human. She fled into an enclosed pasture and was promptly lynched by civilian dwarves who were coming out to bury the dead. With the fort now vulnerable to goblin and undead sieges, I decided to turn a bad situation to my dwarves' advantage. Two words:
Werebeast. Berserkers.
Miners dug out a cave for the infected dwarves, separated from the fortress by a good distance. Carpenters blocked the entrance with a wooden wall and roof, controlling access with a lever-linked drawbridge. The three infected dwarves were burrowed to the cave and formed into a new squad, called Wild Fury. They were to train to fight naked, since their wereforms were far too large for dwarven armor or clothes. In battle, they were to wield silver war hammers and steel shields. Now, the enemies of Nutsmansion would learn to fear the night.
Of course, everything did not work out quite as planned. Unfortunately, it seems that military dwarves on active duty treat any werebeasts as enemies, even their own squad mates. Thus, after their first month of training, the members of Wild Fury changed into wereform, milled around their barracks doing nothing (I had locked them in, of course), changed back to dwarven form and immediately started trying to kill each other. Oddly enough, the one that survived was the fisherdwarf. Not the former captain of the guard, or the former axedwarf, but the fisherdwarf.
I can just imagine her shouting, "There can be only one!" as she caved their skulls in.