Yep, I loved running 4 campaigns of 1e. I had the sleeve cover edition, and then I got the big book. I know free league's version is out, I was on their site running Twilight 2000 from free league recently. Yeah, what we did to have 11 was nobody interrupted, anyone's scenes, and almost everyone was an experienced roleplayer, and all loved the lore of the game. There was a day when they begged me to run three scenarios in a row, so that was 13 hours on a saturday, starting early in the morning. I have little kids now so those monster games are not happening.