In the Patreon demo enemies don't rank up. Instead, every enemy can be recruited through the Revival menu and ranked up like other playable characters!
If you've met Liv, she's the one who gives you access to Revival.
yes thanks, figured that out after i had beat the game and discovered that i can even swap who is on my team, now im trying to go through and get everyone (that i can) but its been really annoying to try and find Liv, is there a formula/ way to know where she is or a way to get her to spawn?