Just to report I have completed the Saleucami Fleet Action mission and all the regular space missions except Mugaar Ice Field. And there all I need is the ten generators on the frigate ships. The republic generators are muich harder to hit for some reason, I think it is because they are recesed a bit and there are a lot of turrets around them and so you lock onto them first. I will kep trying and feel I will get them, I have blasted them all at different times but not ten in one pass. The hardest problem I had with Saleucami was locking on to the generator on top of the command ship, but as others have said it is doable. Thank you all for your responses as they helped me to know it is possible.