I've uploaded a few samples of the new version.
Doom 2: https://dl.dropboxusercontent.com/u/1285124/d_runnin.mp3
Wing Commander III: https://dl.dropboxusercontent.com/u/1285124/WC3MID14.mp3
Wing Commander Privateer...
The GOGWiki has instructions for adding Righteous Fire to GOG's Privateer.
http://www.gogwiki.com/wiki/Wing_Commander:_Privateer#Adding_the_Righteous_Fire_expansion_pack
The EULA for EA games on GOG is a copy-paste for every game associated with EA. There is no DRM whatsoever in GOG's release.
http://www.gog.com/en/forum/general/that_eula_that_comes_with_ea_games