Some help please

[Iansidious]

I need some help.I am on the first campaign, I'm to the point where I need to destroy the Mogal starbase well I did that some time before my terran contact told me to do so.I went ahead and looked in that system still no starbase I did some hunting then went where I was told to and, my contact dos'nt responed. Do I need to restart or is there something else I can do.Should'nt let my greed get the best of me.