Discovery mod is a full-scale expansion pack for Freelancer focused on continuing the story started in the vanilla campaign. The mod is used by some of the busiest multiplayer Freelancer servers and has multiplayer features including player owned (and built) bases, jumpdrives, cloaking devices and equipment manufacturing.
Discovery Freelancer is a game that greatly expands the multiplayer of Freelancer. Discovery is also a roleplaying game, which, combined with the forums, adds a lot of depth to what you do in-game. The community of DiscoveryGC is good (they all have their issues), and is one of the best that I have played in. The rating? This mod definitely deserves a 10/10.