[WallOfText]Unfortunately, this idea requires a mass of new modelling and code. Just making the entire 3km ship look detailed alone is hard enough. You've got pilot models, AI (or just random people being scripted to walk around), voice acting (unless you want nothing but subtitles), coding to be able to play the game like an actual first-person shooter, balancing, and storyline problems to deal with. Trying to capture/sabotage the Lucifer borders on suicide because of all the Shivans inside. A trained boarding party armed with big weapons couldn't stop less than five Shivans before being incinerated. If you somehow manage to sabotage the Lucifer, they'll just fix it unless you caused a magical reaction that zaps all five reactors. Pray that a deus ex machina™ saves you from the huge node-collapsing explosion. While you just saved yourself and Vasuda, what's FreeSpace 2 going to be like now? The Shivans sending their Sathanas fleet firstthing instead of waiting?[/WallOfText]
[ Game Over ]
[ You have caused a paradox.

]
Summary: This may take a few decades and storyline-adjusting.