In theory, the MI demo might has sprites/enemies not found in the M2 demo, such as Hunters, Troopers and F'lickta. It's been a while since I used it, so I don't know.
Last time I checked, Tempus Irae could be used in place of the base Infinity files, because it implements all the original Marathon monsters. Just the F'lickta sounds are replaced.
: i got problem two cleared up, but help would still be helpful for the other
: two
: also, i downloaded devil in a bluse dress for m2, and it won't work with my
: M2 demo. it will work with the MI demo, and the full version of M1A1.
: always quits when it gets to a part of the level jaunt. any insights?