Maybe I'm alone on this, but I always thought the Weyland Yutani promotional videos featured in this game were a really nice touch, and perhaps weren't given the attention they deserved. So why not use them to replace the (rather underwhelming) looping facehugger scan from the main menu, I thought to myself.
Viola!
While I was at it, I also did a little modification to each of the species menu screens, adding appropriate sound effects and a bit more visual noise, with the WY symbol overlaid as well.
Files are available from ModDB here:
https://www.moddb.com/mods/weyland-yutani-menu-backgrounds