From the preview:
There are those in the invasion fleet who are happy to disguise their failures as successes. Field General Tor is not among them. He might expect to see such behaviour among the cowardly humans, but if any of the troopers under his command attempted such, their punishment would be endless and agonising.
Drive and ambition have ever been Tor's greatest strengths, and his ceaseless dedication has finally paid off. He's found something that was overlooked by High Command, and he plans to investigate it. If his hunch is right, it could make him one of the key players in the invasion of Earth...