From what I've heard it's just an editor for multiplayer maps.
Scripting would be probably not included (Darkstone had a chintzy one, and I managed to make a few nonlinear and multiple outcome quests - don't get me wrong, it's one of the BEST editors, but the scripting was limited; if you want to try your hand at level making for a 3d Diablo clone, IMHO better than Diablo, then Darkstone is cheap and a good buy, patches are available at delphinesoft.com, and they are mostly expanding feature patches and not bug fixes for the most part). Not certain if you can make a door lockable with a certain amount of skill required - I'm guessing the maps you can make would be just tilesets. I've not played too much multiplayer to explore the maps and see if they have lockable doors and such. But you'd get the idea that I'd have scripting to have the following elementary ideas put in:
1. Locked doors leading to the roof for access. Sniping and ambush point accesses as well, including windows that could use lockpick skill to open from the outside (traps skill to check for/disarm an alarm, of course). Hidden goodies and the like. Give a reason for people to chance taking lockpick.
2. Science skill being used to operate a computer to turn on and off certain traps or blast doors or various other operations. (A stretch, I must say - I don't believe the editor would support a Use.Item->Action.Operate->Alter.State capability like how Darkstone's has a bit of resulting action stuff like "Give x person y item and door z will open.", but not in text. You build it graphically and link the entities.)
3. Repair skill to return a garage opener to full operation so that the doors can be opened at the right time for a rather nasty suprise. This one can also be utilized in a number of ways, including repairing a door to remove rust so that it will open, etc. Or even repairing a electronic keycard reader so that a keycard found can open a blast door or turn off an electrified door (keycard would likely be found in some trash by someone with incredibly high perception - but even more unlikely that this would be possible to implement)
4. Actually have any door able to be blown open with the right strength of explosive, but this might be an engine-integral issue.
5. Speech = useless in multiplayer. No two ways about it.
To do any more than the editor is capable of would likely prove to be a waste of time and effort considering the amount of extra missions and such available for play for Fallout 2 (which has been edited pretty well, and only a few things are able to be added or altered). I don't think it would be possible for FOT, considering the memory leaks many experience and also I would suggest wating until there's a final patch before doing anything of note.
JA2 has a full-blown campaign editor in the expansion pack. I've not tried it, but I hear it's extensive...but scripting capability has yet to be seen.
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Dennis Leary stole my song! That...asshole!
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"Robert, your time has come!"
"OOOH! Thank you, Master!"
"Don't mention it."
*Robert explodes in a shower of sparks*
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It's me, Jack Brown! The wind-up ass-hole!
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[font color=white]INTERPLAY: REDEFINING BAD BUSINESS
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Try Arcanum, by those who brought you the first Fallout:
http://fp.geocities.com/jonaac/2.jpg