Along with our open world walkthrough, Max Scoville and I went ahead and checked out the competitive multiplayer in Destiny. We gave both maps a spin, and we also checked out each playable class for the videos.
The biggest thing you need to know is that all the weapons you can carry in the main game can be brought into multiplayer. Even bigger, you can switch your guns at any time from your inventory while in the middle of the match. No grabbing guns from the ground, no limited loadouts, just whatever you have with you. Up to at least 18 guns!