Compared to the whimsical cliff-diving of the last Firefall trailer, the PAX video, spotted on RPS , has a much darker tone. It's narrated by one of the enigmatic enemies of mankind, the Chosen. There's talk of "struggle" and clawing at the dirt. Clawing at the dirt? Here's a word for you, "jetpacks." We'll get to strap them on and fight the forces of evil for free when Firefall comes out later this year. A closed beta is starting right now. You can sign up for a chance to participate on the Firefall site .