Oh. My. GOD.
I do believe this counts as a pertinent post, and I hope the mods are lenient about thread necromancy, but I've got a few things to say.
First off, you're the shit man. Neoadept, you win 40 internets. Downloading another DF copy and gonna go live in a zombie nation.
Second thing: How do I make myself play as corporation or military? I don't really know how to play in fortress mode as other civilizations. What do I click?
Third thing: As a wee one, I was big into zombie movies. Books, comics, movies. There's even zombies (and giants, and very nasty fallen angels) in the bible. Fun stuff. I've heard some interesting things, and I've got some ideas of my own as to what might just be a sweet idea for megabeasts if you're still running this mate- which I hope to heaven you are. I don't know everything about modding, and truth be told my extent of knowledge is someone telling me how to put a new world map into my saves along with typing in a new trap component, but I'll try and format it best as I can to what I think would be some killer semi-megabeasts and megabeasts.
Mutations, the lot of 'em. Hope that doesn't go against your ethos or zombies, but that's the easiest thing to work with- gives the imaginative a lot of room to move in!
GENERAL NASTIES
Lurker
The representation of one should be something you see everywhere- like a green comma. If that's too hard, then one type of tree. It moves fast, and is stealthed until encountered. Attacks by latching onto something, paralyzing it, and then mauling the sonovagun. Very, very violent, like most of these suggestions, seeking out prey whenever it pops up. Everywhere, since the mutation pops up randomly. Can open doors.
Loper
The fastest zombie, hands down. a wiry looking zombie degeneration where the infected wins the mutation lotto and reverts to all fours and gains the speed to haul hindquarters all over to devour the living. Comes in groups of five to ten, the standard zombie powers. Hope you've got a channel with a drawbridge up whenever it's not caravan time, because these things'll go from the edge of your map to your doorstep in the time it takes your character to take twenty steps. Seeks out prey actively. Lives everywhere.
SEMI- MEGABEASTS
Bear Eater
Some severely nasty things that can and will go toe to toe with just about any native creature and bend it so far backwards that the poor animal will find it's head touching its butt. Immensely strong, large enough to -just- hide behind a Sports Utility Vehicle that's resting on it's grill, and not to be engaged in hand to hand. A bit faster than a regular zombie, way slower than a lurker. Can destroy buildings, like, say, a trade depot, or a bridge. Strong enough to survive a fifteen Z-drop. They won't be doing too well, but they'll survive it.
Albatross
Winged zombies. Hey, hey, what's to say after ten thousand years of world gen and the zombie outbreak hitting on year one there wouldn't be winged zombies? Here's a hint:
Think skeletal Giant Eagle.
Isn't that just too horrifying and awesome not to pass up?
I thought it needed suggesting!
Can open doors, can destroy floodgates and doors and small stuff, but not buildings, like a trade depot or workshops. Have a tendency to pick up.
MEGABEASTS
All of them get the highest building destroyer possible. All of them are slow. All of them should be able to absorb enough ammunition to conquer Rhode Island. And all of them should be really, really ticked off.
COLOSSUS
Get your Cthulhu on. eight spiked extending jaws, doing the highest damage of the bunch of appendages. Three stinger tails, paralyzing and poisoning. One arm, ending in nine claws with a spiked tentacle in the center of the palm. seven tentacles, which grasp and hold humans, throw them, crush them, or thrust them down one of their gullets. Five eyes of various sizes scattered about the body. No neck. three legs that can stomp on humans into a fine paste. If it doesn't feel like breaking down a door, it'll open it with a tentacle. No pain, no breathing, no exert, doesn't sever on breaks- it's a fleshy monstrosity that would make demons seal themselves back up in adamantium and hide in the bathroom until it goes away.
DREADNAUGHT
Four arms, one head, the strength to punt humans into pink splashes on the walls. Enough mass to him to take numerous ballista bolts and keep pounding wet chunks of bone into ground. The ground it walks on dies from the weight. It'll kill an elephant by stepping on it. It's big and nasty. Pretty simple.
LEVIATHAN/MONSTER O'WAR
Mix a carp with a zombie with a whale with a man o'war jellyfish with some sentient gelatinous ooze dumped from DuPont with a little bit of seething rage for good measure. Now make it transparent, invisible for all intents and purposes until discovered. Scared yet? A zombie mutation that's grown to live on the bottom of ocean floors, moving silently in the depths, like the ungodly horror of the deeps that it is. And lucky you, it's surfaced and wandered its sodden mass over to your settlement. Enjoy the remaining time you have with your loved ones, then detonate the roof above yourselves. It'll be much quicker that way.
My memory is terrible, and I'm certain there's more you can do with this- but these are some suggestions that I hope'll spark some ideas in your head. Once again, thanks for making this fantastic mod mate!
Double edit (First was for crap formatting): Forge plastic Aromor, craft bone/wood aromor should be "armor". Minor spelling thing, very minor. So far looks quite good! Second thing: With 200 starting points, it's impossible to max out the potential of all the people. First run I ended up with two peasants and no extra goods but for one potato seed and two cats to keep those nasty sounding rats away. Tough stuff.
I'll post results of my first run when I get through my second winter (year two, one and a half years in). Aside from what I mentioned, it all seems to be ticking over nicely.
I don't know if this is just me or an error with DF itself, but when I designate a workshop to be built in my underground bunker, they won't move the stone in the area. I gotta wait for the darned stuff to be moved for the workshops to be built instead of suspended... I think the stones are being used in my wall- or that's what their designated purpose is, but they're not in the wall -quite- yet.