You have really improved in your writing over the past...
It has been nearly two years.
But seriously, the problems that you had with the telling instead of the showing are gone. I love the fact that Ross's thoughts are put in through the chapter, giving us more insight on his character despite the fact that he doesn't talk much. It's also a treat to see this from his point-of-view as the "lone wolf", as compared to Jacob's being the leader.
Plus, Tatiana and Michael (interesting name choice given the prescience of Angemon) are shaping up to be interesting kids. I'm wondering if you're going to go the typical route of having Digimon partners, or if your fic's "Chosen Children" are just soldiers in the war.
Your Digimon characterization is fine. Agumon's feelings towards BlackAgumon were very apparent. Same with Angemon being the leader. Though I have to say that I like Garurumon's character. Not sure why. I just like him helping to take the humans under his watch and giving them advice.
Let me also compliment you on taking your time setting up the characters instead of rushing to get to the action.
I'm looking forward to more of this, even if it's a wait until the next chapter.