@mikemearls do you think you guys will take another shot at mass combat rules? Hope you haven't given up!

— AD (@strames) June 10, 2017

Haven't given up, just haven't quite figured out their most common use in a campaign. #wotcstaff https://t.co/BCp6s2zl6k

— Mike Mearls (@mikemearls) June 10, 2017

If we had good mass combat rules, @christulach wouldn't have had to summon that army of child-killing ghost knights to capture Zelradton.

— Rodney Thompson (@AntarianRanger) June 10, 2017

Yeah, somehow it's my fault. Always blame the LG guy.

— Chris Tulach 🌯 (@christulach) June 10, 2017

That's a good policy. Lawful goods are so filled with guilt they go along for the ride.

— Mike Mearls (@mikemearls) June 10, 2017

LG stands for Lawful Gaslighting, it seems.

— Rodney Thompson (@AntarianRanger) June 11, 2017

@sequel7 @ChrisPerkinsDnD @JeremyECrawford Are we reading Mass Combat rules right that a unit 19+ BR < than another can never do damage? sadly, yes. Playtest and development have not been kind to them. #wotcstaff

— Mike Mearls (@mikemearls) March 12, 2017

@PietroPzzCan allied units sum their BRs when fighting 1 enemy unit? This can partially solve issues with unbalanced BRs/invincible units. yeah, that's the design intent, but clearly rules aren't clear/useful enough in that direction #wotcstaff

— Mike Mearls (@mikemearls) March 8, 2017

@JorgenPettersenIn the mass combat rules, it is meant that a unit can not have a BR of more than 50, or single creature not more than 50? A single creature.

— Jeremy Crawford (@JeremyECrawford) February 23, 2017

WARRIORS!
A document from Master Mike&Jeremy: Mass Combat Rules!
Download:
http://media.wizards.com/downloads/2017_UAMassCombat_v1.pdf