Flux Battle Objectives contains exactly what is is on the tin. Within you'll find over 35 setups split into primary, secondary, and the fluffier tertiary groups of possible objectives – intended to be assigned randomly to players at the table. While the general description is that you should be able to use it for all kinds of wargames, it possesses a definite sci-fi bent, and specifically more than a light with of Warhammer 40K. This certainly doesn't make it impossible or even difficult to integrate with any other sci-fi setting or even moderns, but if you were looking for a little spice to add to your fantasy wargaming, this might not be your best first stop.
Overall, great content with a sprinkling of humor and some really good objectives that cover the gamut of likely and even unlikely things to be pursued.