You know, I have to admit how disgusted I am with how some people choose to respond to someone who's putting out some effort and looking for FEEDBACK, not INSULTS or POOR criticism.
It wasn’t everyone in the thread, but enough. I mean, if it’s not your thing to start, and you see things you don’t like, but don’t want to take the time to actually help, then just don’t post anything. People take silence (and therefore lack of compliments) a lot better than “wow, that was retarded” with nothing more to add.
And seriously, did anyone take other factors into consideration before hurling away with the poor remarks? How old the person is? The overall intent to the story? Reasons why things may or may not be they way they are?
Doesn’t seem like it…
Please, it’s not the best material out there but it’s not the worst either. If you’re gonna reply, be NICE and constructive. But don’t respond like a constructive jerk. In other words, support people’s efforts, don’t bring them down.

Having said that, Beany, here’s my thoughts:

The high number of ghosts in your script (10 vamps, 15 zombies, etc), right now, don’t worry about it. I know it’s been said “get your budget straight” before coming up with those kind of numbers (to which I might add are NOT LotR sized budgets which had hundreds if not more people casted. This is nothing). But that’s assuming you actually plan on filming this.
I know not MANY do, but I know I have and others have written stories in the form of “scripts” for the sake of just doing so. I’ve done it for the fun aspect. Seeing what creative ways I’d pull off scenes, how I’d do them, etc with no intent to film them. It’s just fun. So, if that’s your case, do what you’d like cast wise.

The T-1000, well, people are right on this. Terminator and Ghostbusters don’t really mesh well and there is no common factor between them to even do so. Not that I haven’t been working on weird crossovers, but…I think I’d be hard pressed with this one. I’d drop it.

I agree you should divide the “cast” up into sections. Recurring/Already established Characters, Cameos/Crossover characters, and Original/Newly Created Characters would be best suited.

I’d be careful on how you word things (aside form the general layout you have going which needs some reworking for the forums). As people pointed out, you’ve got a lot left out in the form of details going on what you set up.
While a script isn’t meant to be overly detailed and explain everything, the gist should be easily conveyed and understood as it’s intended to come across.
So, the scene where the kids “fix” the containment unit, should probably be switched from fix (which implied working knowledge of the unit) to perhaps:

“the children continue to frantically press random buttons and pull levels in an attempt to restore the unit back to it’s previous status. After a minute, the children succeed.”

This sets up the same effect, but explaining that it’s kids being scared kids at getting caught, not genius kids who seem to instantly understand how the containment unit works.

Sam Hain. It’s cool you’re bringing him back again. I think he was under used really (despite 2 full eps and some cameos). But, IIRC, he wasn’t a vengeful type of ghost. Even on his second outing, he didn’t actively seek revenge on the Ghostbusters themselves. He took over their home and tried to keep the Ghostbusters away while he carried out his plan. With this in mind, it doesn’t make sense to have him seek revenge on a team of Ghostbusters not even currently active (meaning, it’s a lot of research to hunt down a gang that’s been split up as long as the original team has). He’d move on.

The Mummy, Dracula, Frankenstein, etc. That’s a lot of famous monsters you’ve got there. A mummy in general or a vampire (which you’ve already casted) isn’t really a problem. But enlisted famous monsters like these might be a bit much plot wise. Each one is classic in their own right with rich background (especially Dracula) and deserve perhaps their own story as apposed to somehow being minions or being squeezed in with Sam Hain (who you’ve set up as the main villain). Might want to take them out and use them in their own rights…

The initial set up is a little confusing to when it comes to the Ghostbusters. I see you have casted both the original team and the Extreme team. So when you say this is 15 years since anything has happened with the “local heros” is this referring to the extreme or original?
If this is 15 years after Extreme, you’ve set yourself up for a fast fall as the original team probably isn’t in any real shape to be running around catching ghosts anymore and Sam Hain has no first hand knowledge of the Extreme team to seek any sort of revenge.

The children breaking in is a weak jump start to the story as well. Okay, they’re breaking in, but it’s WHY that’s weak. How is breaking into the ol’ Ghostbusters’ HQ pranking the younger kids?? (Sidenote: You’re referring to them as kids pulling pranks on younger elementary kids. Exactly how old are the 2 breaking in? I mean, elementary is 1-5 IIRC, while Middle School is 6-8.. And Middle school kids in my days never worried about pranking elementary kids. Might want to work on that wording there).
And if they’re pulling pranks, it’s more likely this is the 30th, Mischief Night as appose to Halloween itself. This would also help you establishing a sense of time in your setting/story and give Sam Hain time to work out his plans.

That’s all I got for now, I hope it was helpful.

…

Card Dreamer, where the hell have you been all this time? :p

We could use a lot more people like you, if that feedback you gave isn't helpful to him then he doesn't deserve it.

Welcome, I hope you'll be around for a long time to come.

Thanks Kingpin.

Honestly, I've been here before, but I don't know if it was under this name or Commander Kettch. Either way, I couldn't find my old user (and I do recall something a while back about having to reactivate or verify the account). I didnt and so it went bye bye. But I'm back.

I originally came cause back when I was here, I enjoyed myself and the different subjects. And I originally came back to see how the Comics and Legion itself were doing (though I havne't bought any, I wish I could have =/). I saw and read the entire 24 page thread..I left it well enough alone…

but yeah, I'm just hoping Beany gets my feedback. He posted in May and after some of the posts I responded to, I'm afraid he might have been scared off =/