Still puttering around with this idea, but I've been a bit busy with work (lots of student writing to grade this semester), Netflix (watched Daredevil Season 3 and watching Ken Burns' Vietnam documentary lately), being a dad...
Quick reminder for people who didn't read (or forgot) my previous post. I'm thinking of running an arena combat game using Chainmail's fantasy supplement. My son got me interested in the phone game Clash Royale again (I stopped playing it about a year ago, now I'm playing occasionally again), and that somewhat inspired this. Reading Jon Peterson's Playing At the World is also an inspiration.
The idea is to have players 'draft' teams of soldiers and creatures, I create several arenas (with appropriate fantasy themes - lava caverns, haunted forests, teleportation gates, floating castles, etc.) and let the players duke it out in turn-based combat. Winners will get prizes and XP, and when you level up you get a larger pool of points to draft your fantasy monster team.
The only hang-up I have is that to fit seamlessly with the 'fantastic combat' table, I should use the man-to-man rules, but they aren't by troop type but rather weapon vs armor. So for every type of human (valkyries, barbarians, knights, etc.), demi-human, or humanoid, I'd need to provide set values for armor/weapons. Or else rebuild the tables using the normal Chainmail combat values but converted to the closest result on a 2d6 roll.
I really don't want to have to play a split system where some units/creatures are rolling d6 die pool style, while others are rolling simple 2d6 rolls. I'd rather keep it at 2d6.
My recent foray into the Dungeon! board game for my West Marches game may also help me here, since that game (inspired by Arneson's use of Chainmail combat in his Blackmoor game) uses a 2d6 combat roll system.
So I'll probably have to come up with an expanded 'Fantasy Combat Results' table that includes the standard troop types. And all the humans, demi-humans and humanoids will mostly just be cosmetically different and operate as whatever troop type they are.