Good to see you on here, John! For those that may not know, I have bought many of my 3-D printed Sci-Fi minis from his company, JS Wargamer Printing:
https://wargamerprinting.com/That game looks like a monster! So intrigued to hear that it played so quickly with such big player forces. Did you use the turnover mechanism when a unit fails to activate? For pretty much all of our Rampant series games, we've gone with the modification that all units get a chance to roll for to activate. One miss does not end your turn. Just curious...
Mike Demana