Valve has released a teaser trailer introducing you to the characters in Team Fortress 2, the class-based multiplayer game to be included with Half-Life 2: Episode Two.
Half-Life 2: Episode Two advances the 16-million unit selling franchise, as Valve's trilogy of episodic single player releases continue the award-winning story of Half-Life 2. Armed with new weaponry and vehicles, Dr. Gordon Freeman must race through