I'm curious to see how gameplay changes with it, as you are an ODST (ODST's go in feet first, HOOAH!!!), ahem, sorry. But you won't have the shield system or the enhanced strength of the Chief, meaning that Melee attacks against a Brute are just going to annoy it before it pummels you into Marine Pate.
Rumor has is that the game is supposed to be a squad based game, and that conjures up images of Republic Commando (great game, FYI). I'll keep an eye out on this one, and FYI if you want a direct feed to that video download, it's on the front page of gryphonosiris.blogspot.com
(yeah sorry about the shameless plug there.)