1UP.com provide an exclusive hands on and details of the new Annex mode and show the video of the new multiplayer game mode in action.
This new game type follows the basic model of capturing and holding control points to score points. When a team captures one, they start scoring those points, one per second. Once that clock starts ticking, it doesn't stop until all the points drain from that site.
They conclude that getting down the nuances of working together as a team, determining your tactics, and all the while watching the clock tick down on the current scoring site makes the mode pretty intense.