The teutonic unpacker will mess your warhammer game up (I know, I tried).
First, go to your unpacker folder (C:\Program Files\SEGA\Medieval II Total War\tools\unpacker), then double click the "unpack_all.bat". This will unpack your Medieval 2 folder (not your mods, which is important).
IMPORTANT!: Do not close the unpacker while it is unpacking! It will close when it's done!
Once you do that, download the cfg at the bottom of the page to your teutonic mod folder "C:\Program Files\SEGA\Medieval II Total War\mods\teutonic". It'll ask to overwrite, say yes.
This might work. I'm not sure because I never had the problem you're having. Try it anyways.
Tell me if this helps
