Getting pilots

For the “Badlands” mission in act two, you are supposed to round up pilots from other worlds to help the MCA. I’ve got Hoffer lined up, as well as the guys from Firefrost and Kompira. The guys from Eureka won’t jump on board as of yet. Do you have to answer their questions in a certain order or are there other groups from other systems I have to find before they will help? Any in the Dagda system? You get one e-mail saying to concentrate your efforts on the Marauders in the Mwari system. That’s what I’ve been doing off and on for the last month or so, and don’t seem to be getting anywhere. Any helpful hints would be great. Thanks.