the accompanying zip file contains two DOS console exe routines to change the signature of (1) a specific file (header.bin) and (2) generic changes.
THIS IS BETA
if you don't know what you're doing, if you don't know about dos consoles, don't even attempt to use these files. A reasonable quality tool WILL be made for everyone at a later date. Right now, these are on test to iron out wrinkles.
ChangeUser.exe does what it says it does. You can download an ARmissions (eg) and change the user in header.bin to YOU rather than change to the ARmissions user. Ditto, any other 'savegame' you've snatched from your brother.
gensig.exe is a general purpose signature changer. It's current intent is for people, who have a modest idea of what they are doing, to modify items like mission.par to point to directories other than templates\ (using a hex editor)
This field is wild open and new. The attempt here is to start getting some sanity in missions that you and others create so that we can distribute them easily for others to play.
Hoz and I have had several long, tedious, offline conversations about sorting all this stuff out. We are opening it up now for others to join in (using these tools) so that we can all benefit from the discussion.
Enjoy