Valve has release the "Team Fortress 2" trailer that debut at the Leipzig Game Convention.

"Team Fortress 2, an all-new version of the title that spawned team based multiplayer action games, features the most advanced graphics of any Source-based game released to date. Players choose from a range of unique character classes such as medic, spy, sniper, or engineer and must work together to complete a variety of tactical objectives."

You can download the 217MB video at 3dgamers, FileShack, or VGPro.