Rebellion is not quite as long as Alien Legacy. It has four episodes with a total of twenty eight missions and several cut scenes. As with Alien Legacy all missions will come with individual briefings as well as a Simtext file that will allow a limited pre-flight briefing on the actual simulator screen.I think a lot of people missed out on these fan campaigns back in the day. I know the CIC missed reporting on them from time to time. Now's your chance to catch up!