I believe they are in the dayz_sfx.pbo in your overwatch directory. Just copy that .pbo over the top of your Epoch one, set signatures to 0 and away you go.
Well this was bad news... Looks like the dial home function stopped all from working for me... FIX.
Open notepad as Admin. (right click notepad run as admin). Then open your host file (%SYSTEMROOT%\System32\drivers\etc\hosts) and add the following to the bottom.
127.0.0.1 www.ibattle.org
127.0.0.1 ibattle.org
The following also should also work find if you put it into your run box then make your edits and save
runas.exe /user:Administrator "notepad %SYSTEMROOT%\System32\drivers\etc\hosts"
**Maybe due to me using reporter functions but this still fixed/bypassed that