Hi all
I'm thinking of giving my PCs a heist based on "The Train Job" episode of Firefly. Obviously plenty of inspiration there to start off with, but I was wondering if people had any advice about designing this sort of encounter.
Most of the encounters I've designed so far have obvious entry and exit points - the PCs are coming from X and going to Y, with the encounter something that happens on the way. Something like this, though, feels like it should be more open ended - the train is a moving target, and the PCs will have to come up with the best way to try to get the package they're after (none of them is a pilot, so I don't think they'll actually be able to do the Firefly thing successfully). I guess my question is this: does anybody have any suggestions about the best approach to designing something like this?
Thanks in advance.