<update>
I should have included a game history file with the beta to keep you occupied whilst you’re scanning your own, here’s Ferrex’s game history. Just load the file into Halo 3 Asset-O-Matic using the Load DB button, you can continue any scans you’ve already started as viewing a scanned game history and downloading one are totally seperate 
</update>
It’s not quite as complete as I had planned to release but due to not having enough time to refactor the code at the moment and a strong desire to get his tool into the publics hands I’m proud, and slightly worried, to present the Halo 3 Asset-O-Matic beta!
The usual cavets apply, if your PC explodes it is totally not my fault!
I strongly advise that you read the included README.txt as it explains the basic usage and what’s missing.
Please leave bug reports here so I can get them fixed as well as improving the UI and getting those features I had to cut out for this release back in!
Please link to this post rather than directly to the file, thanks!
Here’s a screenshot so you know what to expect 
Halo 3 Asset-O-Matic