In other Punkbuster games this method (editing the INI or using the command line) can cause a kick, or even a ban in some cases (like servers that stream to PunksBusted or PBBans). This happend to me in other games, including other Unreal engine games on more than one occasion for legitimate changes, and once for having a back up of the original INI in the same folder. Just a word of warning about editing fields like FOV.
However, I do not know if there will be streaming on RO2 PB servers like this.