How can I make a taunt replacing mod?

I’m using Chinese but I prefer some English Taunts like ‘11’. I found a way to extract the .wem files and named the file taunt_11.wem, created a local mod and placed it to ‘\resources_common\drs\sound’.
But it only works after I click ‘Import Local Mods’ in game, playing English taunt when sending ‘11’.
Once I restart the game, the mod show a exclamation mark and doesn’t work.