Wow. Even I've never attempted anything at that scale!The most action packed chapter of my The Ace of Spades Campaign has just been posted on my blog. You can view part 15 here -
If you ever wondered can N.E.W. handle mass combat your answer is here. It can as 40 attackers take on 35 defenders.
I've been jotting notes for something similar for space combat. I need to firm it up and give it a test run.I have been vaguely thinking about a variation of the combat rules designed for larger groups. Not mass combat and units, but say 100 individuals or so. It would likely involve simplifying damage so you’re not tracking a hundred combatants simultaneously. Maybe two statuses - bloodied and dead.