At the end of the final playable mission of BTA2, you are given a choice of picking which of two destroyers to land on.
Is the ending cutscene affected by which choice you make there? I landed on the Delocroix and in the ending cutscene Adhara seceded. Does that still happen if you land on the other destroyer? I forget its name right now but it started with an "M" and had the female admiral.