It appears they're just random. What happens is when the snapshot is generated a set of commands are placed into the distribution database (you can see them with EXEC sp_browsereplcmds) and these have the hardcoded table name along with the script names, and in what order to run them.
When you run the distribution agent for the first time, it gets those replicated commands, and these instruct it to run all the scripts (alternately, if you've got it set to replication support only, I suspect these commands are just ignored).
In order to process the scripts semi-automatically you'd need to grab everything from replcmds (hopefully on a quiet system) and parse the commands before running them manually.