This actually appears (Though you would NOT know it from any of the marketing copy) to be a sequel to the 1994 game "Star Hammer", which played like a top down Wing Commander. http://www.mobygames.com/game/star-hammer
Paul Turbett helmed both games, Vanguard Prophecy was known as Star Hammer 2 while in early development.
I'm pretty sure this is a sequel to the 2010 Starhammer Tactics. The colony Humanity has emigrated to has the same name, the same hostile alien race appears, and it mentions your character being the child of a hero from an earlier war between them and humans.