Originally Posted by supreme kotor
Umm all that gameplay is available in the game...? But if your looking for the official demo it's right here
I'm pretty sure that's not the official demo... that looks like a mod for Star Wars Galactic Battlegrounds, or something of that sort.
CM Punk, on that video you posted the video uploader said that he/she had a copy of the demo in the comments. YouTube commentor's reliability aside, you may try PM'ing one of them on YouTube and see if they'll upload the files for the demo onto a file sharing site.