How to turn the intros back on in patched dark engine games?

[687c3852bf1dfCyrusVonNox2001]

Where do I find the file to change that, and where in the file?

[687c3852bf3c1icemann]

Was going to report what I thought the solution was, but it's been discussed here:
https://www.systemshock.org/index.php?topic=1595.0