For it to work properly with MSC and the Fixes, it has to include name files, descr_strat, EDB, and EDU.
Can't think of any more files it has to include to work properly.
It also needs its sub-mod file updated to the new format. I posted one above, but increasing compatibility by not just overwriting everything is almost certainly possible, but requires knowledge of exactly what's changed, which I lack.
Here's a link to my guide on the new format.