From what I know, which is less than you in SFB since I don't own ANY SFB material and did not hear of the game before I found, quite by accident, SFC, Federation and Empire was the strategy game that mated with SFB. Perhaps similar to what the dynaverse was to resemble? From what I have heard, it allowed one to play as the leader(s) of their respective nations and use this to 'generate' battles of a sort for the commodores/captains of SFB. From the advertisment I have so far read you can, "Play out the entire general war," though this would, from the same statment, take years.
I think someone with more F&E experience should now elaborate,
Holocat.