I'd recommend the standalone Babylon Project
The 'Babylon Project' is a group of dedicated individuals who are trying to bring the essence of Babylon 5 space combat to FreeSpace 2, an award winning space combat simulation from Volition Incorporated. The Babylon Project uses the improved FreeSpace 2 engine by The Source Code Project. Also The Babylon Project stand-alone includes the minimum required files from FreeSpace 2, so you're able to play The Babylon Project without FreeSpace 2 installed. Original FreeSpace 2 campaigns or other mods however will not work, unless these other mods have been specifically made by remaining FS2 files in mind.
The Earth-Minbari War:
As the Earth-Minbari war spirals out of control, you join a squadron of pilots onboard the EAS Rommel to help prevent Minbari warships from reaching Earth. The end of the war is drawing near and the fate of Earth hangs in the balance.
The Raider Wars:
The year is 2258 and the name of the place is Altair. The Raiders, an organized faction of pirates and smugglers have lately established a strong presence in the Altair system. The Earth Force has decided to launch an offensive and to stop Raider activity once and for all. TBP DVD 1.0 Mirrors TBP DVD FEATURES:
The Babylon Project v3.4b Core (FINAL) - Everything you need to get started playing and building your own missions and campaigns. Includes two campaigns, the Earth-Minbari War Demo and Raider Wars.
The Babylon Project User-Made Campaign Pack v2.0 - Contains 15 additional excellent User-Made Campaigns and Mission Sets as well as Multiplayer Mission Updates. All are the latest versions at the time of release.
Advanced installer for TBP v3.4b Final and Campaign Pack v2.0. The Advanced Installer features full installation customizing and maintance options and well as theme music and slide show during install.
Highly Customized DVD Menu with full motion Intro Video, interactive ReadMe and Extras Menus with authentic B5 Music, Sounds and TBP Graphics. Also includes links to Babylon 5 and TBP related websites.
Printable Custom TBP DVD Label Art for the Disc and your choice of DVD or Jewel case layouts. Includes Generic JPG Images and Nero Cover Designer Templates.
TBP Movie Collection - Five TBP Related Videos and Teasers.
FreeSpace Development Extraction Tools. Useful tools the would-be modders.
DirectX 9.0c and OpenAL is included.
Additional Microsoft Voices - Mary, Mike and the hard to find Anna (the best one).
Gaming Hardware profiles for Saitek X52 HOTAS Joystick and Game Commander 2 Voice Command Software.
PLUS Bouns Desktop Items to pimp out you PC desktop in true Babylon 5 Style!