synopia's fix/update for A16 actually does work. There's some things that could be improved, but zombies raids are functional, and so is the infection. As far as I can tell, it's also 100% compatible with EPOE.
Other things are pretty minor, like zombies aren't colored green, the game still shows a message about them fleeing even when though their AI properly tells them to keep approaching anyway. One thing that DOES cause a problem is that sometimes one of the random pawns that joins the colony is from the zombie faction, so they immediate start attacking colonists. Then you shoot it down, and the colonists whine about "A colonist died".
I'm not sure if that's only happening because I have the Hospitality mod installed, so I'm given a yes/no choice when someone wants to join, but at least I can choose to decline anyone from that faction. The same thing would happen if you use dev mode to forcibly recruit a zombie.
Overall, it's great to see that I can make more zombie apocalypse colonies. Thanks for getting the the zombie waves at least functional, synopia

Edit: It seems like zombies never send a large number at me, it's only reached up to 5 zombies at once, even after 2 years on Rough difficulty with Cassandra storyteller. I can use dev mode to spawn a larger horde, but shouldn't their numbers be increasing as my colony wealth goes up? Not sure why it isn't happening automatically.