How do I use obmm to make the ArchiveInvalidation work?

OBMM and BAIN both have a BSA redirection option (but do not implement it in both at once.)
>> Note: OBMM's is found in Utilities>Archive invalidation, and BAIN's can be selected by right-clicking on the Package header in the Installers tab.

From tescosi.com --> Bookmark that website!

Also, use Dynamic Map instead of Elven Map redux.