How on earth did we all go on so long without anyone mentioning the Blood Angel Furioso Dreadnought's Frag Cannon upgrade?

We just saw a dread put 23 wounds on a unit with it the turn it came out of a pod... That many wounds means who cares about armor saves... and the rending is just a cherry on top.

Assault 2 template weapons are a mean piece of business. Now the question is can you equip the frag cannon on a Furioso Librarian. I think you can...