Here is a new version of the Phoenix mod for Freelancer. It comes with many fixes and addons including new ships, weapons, bases plus support for OSP (Open Single Player) meaning you can play it in singleplayer without doing the storyline.
Here is the full version of the Phoenix mod by Gibbon. It can be played in singleplayer or on the dedicated 24/7 Phoenix multiplayer server. See included readme file for details. Requires Mod Manager 1.3 to activate.