This is just a little mod for those who have done all the challenge in the campaign and want something for their über fleet to chew on. (compatible for starfarer v0.52a)
Upon activating the mod and loading your savegame, all the factions of the system will ally together and form a massive fleet that want you dead once and for all. (The fleet spawn the next time the Trytachyon supply fleet would have)
To install the mod, simply unpack it in the mods folder and select it in the mod section at the starfarer launcher.
Don't use this mod on a new game unless you want it extra-hard !
http://www.mediafire.com/?k869qa6nv1968ge V1.01 With a slightly different fleet composition.