Interesting idea, I have a bronze lizard archer, a warrior with an axe, a sorceress, and a human archer's skin in lizard swamp armor from a Polish mod in my stash.
Added 1 minute ago
and also a couple of gnolls.
I don't think they will be useful.
Approximate composition:
1. Slaves/Rebels/Miners - Most likely, orcs, but skinny and without good weapons.)
2. Hunters/Scouts/Bear Riders - Definitely humans. Archers.
3. Wolf Riders/Lancers/Raiders - Humans on large and evil wolves.
4. Wild Griffins/Night Griffins/Cliff Guardians - These will definitely be griffins.
5. Ogre Shamans/Ogre Mages/Blood Warlocks - Overpowered human-orcs. The fruit of sin.
6. Archer, ideas - a hand-held culverin or a hand-held ballista.)
7. Trolls/Enn Trolls/Mountain Trolls