EDIT
THIS HAS BEEN FIXED ON NEWER VERSIONS OF FREESPACE. USE 22.2.0 OR NEWER
The first mission "Asteroid Patrol" has a problem that prevent loading in the latest version of the game and requires several small fixes, such as putting quotes around "<argument>" and a bug that an <argument> shouldn't be there.
Because it is a mission packaged in a vp, the solution is not simple. What I am doing is loading the game with the content of the extracted vp in that same folder, and editing the changes in the extracted files.
This is the fixed code of SP-01.fs2:
https://pastebin.com/Z1rPhRye