In the case of unguided rockets the best way to fire them is line up as many as you can together in the same place and launch them at the same target at the same time. By doing this you make up for the fact that each individual rocket is unguided, you multiply the blast effect and you overwhelm the emergency services. If your target is a city you will kill dozens of people in one go, no problem at all. HB were never able to do this. I wasn´t at all trying to make light of the suffering of Israelis in the north during war last year but it could easily have been very much worse.