Hey Jagd;
To show you what I mean do this:
1. Place any of these 5 or all of them (Barracks1, Blister, Mobstore, Towerwith or Towerwithout) in a mission. Save the mission and exit MB.
2. Go into your SCENEDB\INF\Scenery Folder and find RAFLib.bgl and add .bak to it.
3. Go Fly the mission and look at the objects. Exit CFS2. You'll probably get missing object msgs
4. Go back to your SCENEDB\INF\Scenery Folder and remove the .bak from RAFLib.bgl and then find BritObj.bgl and add the .bak extension to it.
5. Fly the mission again. You should see the same objects with a different texture. Then exit CFS2.
6. Delete the .bak from the BritObj.bgl. To get back to normal you'll need to add the .bak once again to the RAFLib.bgl, start CFS2, fly, exit CFS2 and then go back and delete the .bak from the RAFLib.bgl.
On my rig it chooses the version from the last bgl added. All 5 of those objects exist in both bgls and it can cause wierd things to happen to the texturing of the objects as you'll see. Your method of keeping them apart and never active at the same time will avoid it for sure.