Script formally required - can anyone help?

After no success in getting a simple campaign script to work I am formally asking any scripters who have the FATW 'Corsair Invasion' installed if they can devise a script to have a building placed in a settlement at game-start? It is important that it is tested in CI as all samples given to me have failed.

CI is a BI 1.6 modfolder provincial campaign.

Once I tried to do a campaign script for BI and I was unable. In fact, I have never seen a campaign script working in a BI mod.
I have made campaign scripts for vanilla RTW named: Prologue_Campaign_Script.txt
and for ATW the correct name is: Alexander_Campaign_Script.txt
If I use other names, the script don't work, but I didn't find the correct name for BI campaign scripts.