Sins of a Solar Empire: Hell Released mod

It's been nearly 2 decades since the war of the Vasari, TEC, and the Advent factions have been at war with each other. Now, a new threat is poised to destroy them all. An evil born since the Vasari ran from their empire's territories. This one race has been come to be known as the Altarin Republic, much worse than the Vasari, or anything the TEC has come against, but their structures somewhat resemble that of the TEC's and so have allied themselves with the TEC, knowing that their brethren have lied beyond the stars. Now, no one knows whether the Altarin are either friend, or will they become a foe? More deadly, and sure enough, worse than the Vasari?