Unfortunately, I couldn't find any information on "Briefing Background Vector" in the provided search results. It's possible that it's a topic not widely discussed or documented online.

However, I can suggest some alternatives to help you achieve your goal:

* Check if there are any libraries or frameworks available for generating briefing backgrounds.
* Look into image processing techniques such as vector graphics or pixel art to create a custom briefing background.
* Consider using a pre-made template or design asset that can be customized to fit your needs.

If you have any more information about what you're trying to achieve with "Briefing Background Vector," I'd be happy to try and help further.