It's only been eight months since the release of Command & Conquer: Generals, the latest installment in this extremely popular real-time strategy series. Though Generals was the first C&C that did not bear the name of Westwood Studios (the series' original developer), it was still every bit as action-packed and fast-paced as the series has ever been. It represented a great combination of the over-the-top pyrotechnics the series is known for, along with some of the gameplay elements perfected by Blizzard's competing RTS franchises. However, the game clearly left some room for additional content, so, while it's no surprise that Generals went on to get its own expansion pack--as pretty much every Command & Conquer game gets at least one--the newly released Zero Hour was put together surprisingly quickly. You wouldn't know it just from playing this fully featured expansion pack, since it makes plenty of meaningful and interesting changes to the original game. Additionally, it packs in a lot of great tweaks and improvements to those aspects of Generals that could have used more polish. The result is a great expansion that's a must for anyone who enjoyed Generals. It fundamentally improves the core game, it and should ensure that C&C Generals continues to be popular well into the next year.