@Almighty - LMAO! I love how you assume it'd be a BETA.
if it's Multiplayer, it'll be a demo. It's 2 weeks before release, there's no time for ND to make changes to the Muliplayer
The Subway MP for Uncharted 3 was technically a beta (Subway Beta) and that "beta" was nearly the whole MP.
Either that or it was just "Taste for Adventure" to them. Whether that counts as a beta to ND or not I don't know. We all just called it the Subway Beta anyway.