Camera shake

[Nelson]

The folder this file resides in is: Steam\steamapps\common\total war shogun 2\benchmarks

You must then modify the file for your resolution. In my case it's BenchmarkDX11GraphicsHigh1080p_preferences.script.txt

[Nowake]

Hmm, that would be inaccurate

The file is to be found, as I wrote above, in your Scripts folder.
The path to it is:

C:\YOUR PROFILE NAME\AppData\Roaming\The Creative Assembly\Shogun2\Scripts\preferences.script.txt

[Sp4]

Yes, I found it thanks =P I've been playing around with that file a little already to create epic battles of 20000 people =P