AddKeyboardLanguage.xml

<gs:GlobalizationServices xmlns:gs="urn:longhornGlobalizationUnattend"> 
	<gs:UserList>
		<gs:User UserID="Current" CopySettingsToDefaultUserAcct="false" CopySettingsToSystemAcct="false"/>
	</gs:UserList> 
	<gs:InputPreferences> 
		<gs:InputLanguageID Action="add" ID="0409:00000409"/>
		<gs:InputLanguageID Action="add" ID="0809:00000809"/>
		<gs:InputLanguageID Action="add" ID="0409:00000809"/>
		<gs:InputLanguageID Action="add" ID="0809:00000409"/>
	</gs:InputPreferences>
</gs:GlobalizationServices>

RemoveKeyboardLanguage.xml

<gs:GlobalizationServices xmlns:gs="urn:longhornGlobalizationUnattend"> 
	<gs:UserList>
		<gs:User UserID="Current" CopySettingsToDefaultUserAcct="false" CopySettingsToSystemAcct="false"/>
	</gs:UserList> 
	<gs:InputPreferences> 
		<gs:InputLanguageID Action="remove" ID="0409:00000409"/>
		<gs:InputLanguageID Action="remove" ID="0809:00000809"/>
		<gs:InputLanguageID Action="remove" ID="0409:00000809"/>
		<gs:InputLanguageID Action="remove" ID="0809:00000409"/>
	</gs:InputPreferences>
</gs:GlobalizationServices>

runcsgo.bat

@echo off

echo ----------------
echo add English (US)
echo ----------------
control intl.cpl,, /f:"AddKeyboardLanguage.xml"

echo.

echo ----------------
echo start CS:GO
echo ----------------
start steam://rungameid/730

:search
tasklist|find "csgo.exe"
IF %ERRORLEVEL% == 0 (GOTO found)
TIMEOUT /T 2
GOTO search

:found
TIMEOUT /t 10
echo.
echo ----------------
echo remove English (US)
echo ----------------
control intl.cpl,, /f:"RemoveKeyboardLanguage.xml"