With the release of Halo 4 right around the corner, Halo fever is in full effect. People will be lining up to get their hands on the game (and hey, if you want to avoid the lines and score a free Xbox 360 in the process, you can always enter our GameStop Halo 4 giveaway). With anticipation for the release mounting, we got to chat with video game journalist Geoff Keighley last week. Geoff was just coming off a visit to New York Comin-Con, and he’s working with Mountain Dew and Doritos to promote the launch of Double XP, where gamers can get access to exclusive features and enhance the Halo 4 multiplayer experience through DEWXP.com.

Basically, if you pick up different Mountain Dew and Doritos products, you can redeem codes on the DEXP.com site to load up on Double XP. Starting November 6, Halo 4 and Xbox LIVE gold members can use Double XP in game to unlock all kinds of goodies and to enter for a chance to win cool prizes like a limited edition Halo 4 wireless controller, a limited edition Halo 4 Xbox 360 console and toys, t-shirts games and more.

Geoff gave us some more info about the Double XP program, how you can get involved and what he’s looking forward to with the release of Halo 4. We also took a trip down memory lane to reminisce about Rise of the Triad, one of my favorite PC games of all time. Here’s the interview: