Its a good game if your not to worried about realism far more on the arcade side there is no manual targetting etc., just point your scope and fire, you can take command of the ships as well. Never owned the gold edition just the standard, if i remember right there was an important final patch for this game that added more missions & a basic editor. The graphics detail was tops for back then.
I'm sure Enigma is now a free download or was for a limited time, wasn't it on subsim for free
