What u need to do：
1.Download the PFM here：（{链接已删除}http://pan.baidu.com/s/1u1dvp or https://drive.google.com/folderview?id=0BwmLEGgx4eSsdm1pQTcxdk1NOGs&usp=sharing or https://drive.google.com/?usp=folder&authuser=0#folders/0BwmLEGgx4eSsdm1pQTcxdk1NOGs）
2.Run PFM2.15.exe and open the expended。pack（it probably in :\Steam\steamapps\common\Total War SHOGUN 2\data）
3.Click File——》Change Pack Type——》and turn the file type to movie.
4.Save the file and run the game.

Note: If u do all of these above， the mod won't show on ur MODmanager.（but still running）
Just moving the expended.pack another place when u need
to start an original game.