Well, at the tempting of ShadowGorrath, I touched up the modified
Nemesis mission I used to take the screenshot on "Celebration of Freespace" into a playable state. And I made a video of myself playing it.
http://www.youtube.com/watch?v=udeAWXSnWAIThe video ends when the Independance arrives, because of two reasons:
1) The mission from from thereon in is unchanged
2) I got hit by the Nemesis's radar dish when it was jumping out (and died

)
Yeah, I'm using a GTF Erinyes with dual UD-8 Kayser banks and spraying them with minimal energy drain on medium difficulty, in case anyone was wondering.