Needler weapons

If there was a search feature I'd check to see if this question has already been done. Something has just hit my mind about needler weapons. Why are the needler weapons in SF so lame where other sci-fi games and in some stories these things are some of the nastiest weapons you'll come across.<br /><br />HALO the needler is a high rate of fire weapon.<br />Warhammer 40K these things are deadly sniper weapons.<br /><br />So why does SF rules make needlers so weak, not even useful against skiensuits or inertia screens.<br />There needs to be an upgrade of the needler weapons in SF. Different and more powerful models.