The newest issue of PC Gamer has plenty of new details on the second downloadable episode for Half-Life 2. New weapon (Strider buster), new locations (missile silos, forrests, minefields), new vehicles, more complex physics puzzles, new gravity gun mode, new multiplayer mode and more open battles with large amount of enemies. Unfortunately the article also states that Half-Life 2 : Episode 2 is scheduled for spring 2007, if this is accurate then that means several months delay from its original date.