Multiplayer has never been a huge part of the Uncharted series; it's the story-driven campaign that has made the franchise one of the biggest PlayStation games around. But that could change with the upcoming Uncharted 4. At a keynote in Paris today, Sony revealed a first look at the game's multiplayer mode, and it appears to be surprisingly robust. The new trailer shows a multuplayer mode with the same focus on impressive set-pieces as the main campaign, only this way you get to enjoy it with friends. There are also some new features, including a sidekick who will help you track enemies and revive allies. The beta for the Uncharted 4 multiplayer mode will hit the PS4 on December 4th, while the full game launches on March 18th.