[RyuHimora]

I'm trying to make a briefing stage only be used if a goal was met in the previous mission. Both missions are in the campaign file, but the is-previous-goal-true SEXP is not letting me use any mission name other than the current one. Is there a guide for working with this SEXP?

[niffiwan]

For documentation on SEXPs you can run FSO with the "-output_sexps" (aka Output SEXPs to sexps.html) option (under Advanced -> Dev Tools in the Launcher) which creates a html file with help for all the SEXPs available in the current version of FSO.

[X3N0-Life-Form]

I don't think that's really gonna help, IIRC, this is basically the same documentation as the one found in FRED itself.

I'm trying to make a briefing stage only be used if a goal was met in the previous mission. Both missions are in the campaign file, but the is-previous-goal-true SEXP is not letting me use any mission name other than the current one. Is there a guide for working with this SEXP?

FRED itself might simply not be aware of missions other than the one currently opened, which means that you'll need to write the mission and goal names manually.

[RyuHimora]

FRED itself might simply not be aware of missions other than the one currently opened, which means that you'll need to write the mission and goal names manually.

That ended up working. Thanks!