Quote: "1. When I start up my game is it possible to have a small video clip play? The video clip would be for a logo, or the intro to the game."
You can definately customise sreens that appear - I don't know to what detail.
Quote: "2. Will there be a generic loading screen provided or can i make my own custom loading screen?"
I think it'll be possible to make your own.
Quote: "3. Someone asked about cutscenes. Now I know you cant make them in the FPSC, but if I made a cutscene and recorded it as a video file in some other program, could I play that in between a level?"
Same as bove - there's limited scope for scripting that sort of thing. I seem to remember somebody saying FMV wasn't supported though.
Quote: "4. Can models interact with surroundings? (Fire burns enemy, piston kills enemy, etc etc)...Im guessing the scripting system would allow that, but id like an official statement. (*if thats not too much trouble )"
You could create a kill zone where the fire is, that'd harm the player. And you couold attah a simple script to the fire working out the distance between it and an enemy and if so the hurt them.