Hello! Full disclaimer: I am the author of HARP Subterfuge. When the PDF released last summer, there were some Discord comments that portions of the book might also be useful for RM. Now that the print version is ready, I posted the
table of contents here so everyone could see the scope of the material (see alt link in entry 5 if the attachment is still pending).
While I was heavily into RM in the 80s, I am not up-to-date with RMU, so I'd rather the community comment on which parts of the book transfer well or add value to RM campaigns. If you bought HARP Subterfuge (thank you) and are using it with RM, feel free to comment below. It would be nice to hear how you are adapting it.
