My old Orc speedfreaks were the jammiest army ive ever played, even though the rules were in their favour so too were the dice gods, playing a tyranid army once my boss and 9 nobs plus truck destroyed 3 tyrant guards by shooting and the hive tyrant in combat all any of them had was slugga and choppa plus the big shoota on the truck, that whole turn was equally lucky and there was a vast pile of nid corpses in the next turn that seemed to distract my boys as they barely killed a thing.