: I was just browsing through the Marathon's Story page and stumbled across
: something I never knew about before: A 20/10 Scenario Pack for Marathon
: that Bungie meant to release but never did. Does anybody know what
: happened to it? Has anyone at Bungie said that they do or do not plan on
: releasing the levels at some point? Have they been leaked anywhere?
: ...Have some of the levels been featured in Marathon 2 or Infinity?
Yeah, far as I know, it was recycled into Marathon 2; I think it was meant as a basic expansion back, 20 net levels and 10 solo ones. The response to M1 was good enough that they were able to get funding to make a full game with new engine instead.