tasers and flechete blasters, no question about it. blasters are good against any unit that with a 4+ or less and same with tasers as the taser special rule will drown any unit in s6 hits. power swords are only good if the enemy has a 3+ any 2+ is going to survive. I killed a dreadkight with tasers, and the phase taser. I dropped it to 1 wound then it failed the initiative test. basically any 6s is death to the enemy with these guys and with the volume of attack they can throw out there isn't any competition.