I agree with the folks that say you need to go all or nothing with LR squadrons. I think that using them in squadrons is always a gamble, because you either get lucky and dominate the game because the opponent doesn't have enough anti tank weaponry to deal with you quickly enough, or you suffer as he destroys half of your army in a couple of turns. I've seen it go both ways, but overall, I wouldn't recommend them, 3 LR's is enough for an all-comer's list, spend those points on hellhounds and all the other goodness instead