you should really install the bonus pack now. yesterday around 15 missles where lauched against me within 2 minutes ( I attacked one of those xenon convoys with my nova - one corvette with several fighters).
god bless the counter measures system =)

very interesting is also the logistik mk2 software. very complicated at first but once you are used to handle it its ok. I have two traders managing alone the overflow and shortage of ressources from all my factories.

btw: against khaak clusters hurrikanes works at best. two of them and the cluster is gone (if timed well. optimal firing range is 3k-5k two missles short after another as soon as the cluster "goes up").