Pieces of Me (SI, Mass-X-Over, RFC, Warning: Rated Hard-R)

[classicdrogn]

It's too bad the steam is running out, though if the battle sequences are the major problem you could skip them as such, only covering them as the reports JJ gives to Celestia and which he intentionally leaves light on the gritty details, or with a line or two of narration around his talks with the Apple brothers during the calm moments. Writing fight scenes let alone mass combat takes a lot of page space per unit time so if you're not confident in your ability to handle it well and not interested in writing Full Metal Jacket or Saving Private Ryan with quadrupeds in the first place, there's no reason to force it. The summary you wrote above does a fine job of explaining the course of the war while only giving detail about the bits that directly involve character interaction, so even the incident with the Gryphons' bomb could be entirely handled via the discussion with Little Mac afterward.