I was never quite liked the broad, neon-on-black scrolling text intro to the campaign. While the text is well-written, it was not nice to the eyes, and the scrolling looked jumpy on my system.
So when someone mentioned that the .UFO files are easy-to-understand scripts, I gave it a try and made my own.
It's a first attempt, using only media from the game, and I haven't found any way to keep the text from stretching to the sides of the screen.
(Does anybody know how "enlarge" works?)
Still, I think it is quite an improvement. Just replace the ufos/seq_intro.ufo from the ufos.pk3 with this one.