AFAIK it's impossible to shut down the EB script (except by quitting the game) so I'd like to know the answer as well. It's definitely not recommended to "switch factions" by loading another campaign.

It going to the main menu enough to shut down the script, or do you need to quit the game entirely? Also, will it confuse the script if you load a save-game from the same campaign but a few years previously?

Moving thread to the EB tech-help forum.