Hi all. Inspired by the 'How to silence the new battle announcer'-thread, I've created a mod that muzzles the American cowboy guy in the Fall of the Samurai DLC. It's posted here in the mods section: http://forums.totalwar.org/vb/showthread.php?141072-FotS-Aide-de-Camp-Silencer-%28beta%29
Give it a shot, it has been tested.
And it leaves the anouncers in the other campaigns (original Shogun2 and Rise of the Samurai) as they were.
I hated him too