Which xml file do I need to change so I can make them all always spawn?

I saw a post on it a while ago, but can't seem to locate where it is now.

1. I think you want to modify the file:
\Fall from Heaven 2 033\Assets\XML\GlobalDefinesAlt

2. Open the file in a text editor and look for:
<DefineName>IMPROVEMENT_UNIQUE_CHANCE</DefineName>
<iDefineIntVal>35</iDefineIntVal>

3. Change the 35 to 200 to ensure they are present in any map size.

4. Enjoy!

That was it, I was searching for 'feature' not improvement, thanks heaps.