Tardust is the only character to successfully coordinate an offensive attack on the zombies (sounded like he was the mastermind behind the arena attack). He also was not named as a Maller who was killed at the colony.

I think his path will cross that of our heroes again. He could be a great asset to their new offensive mindset, and he seems to have a great technical knowledge of explosives and/or chemistry.
What do you think Tardust has in store for the rest of our series?