This doesn't quite fit the 1st-person shooter genre, but I'm pretty sure there are a few other "Robotech" fans on this board.
From this page on the official
[url=http://www.robotech.com/news/viewarticle.php?id=108]Robotech[/url] website, click on "Featured Media Archive" to download the quicktime video of the 2-player mode demo'ed at E3. Veeeeeeeery Niiiiiiiiiiiice!
An XBox is starting to look pretty attractive right about now.