These guys are quite ready to go smashing into the enemy and adding more skulls to their trophy racks.
I happened just by chance to own eight bikes so I turned them into 2 squads of four. I magnetized them like my Night Hawks to have special weapons along the side of the chassis. I imagine they'd always want melta guns though and would normally be in squads of 3. I know CSM models replace the twin linked bolter with the special weapon but that looked dumb and wasn't easy to magnetize for the effort.