COMMAND & CONQUER GENERALS, a subset of the popular COMMAND & CONQUER real time strategy games now under the banner of EA Games, refined the series even more, and now the Zero Hour Expansion Pack refines GENERALS, perfecting the series' best while adding new elements. The GENERALS series puts players in command of one of three world powers: the US, China, or the GLA terrorist group. Zero Hour introduces nine subfactions, units under one of the three powers, including the US air force and the Chinese infantry. Each has its own unique leader and its own playing style. Some subfactions may not be able to build every unit available to its umbrella faction but may have access to specialized technology that no other group has. In the new Generals Challenge mode, a player's subfaction is pitted against the other eight on their home territory. The game also includes five new missions for each of the three superpowers. Each faction has three new units available, plus a new building, new upgrades, and new general powers. These new units include the US microwave tank, the Chinese Helix helicopter, and the GLA combat cycle, while new buildings include the US firebase, the Chinese internet center, and the GLA can now construct fake installations to confuse its enemies. This expansion pack for COMMAND & CONQUER GENERALS includes everything a good expansion pack should have. Players should waste no time in picking up COMMAND & CONQUER GENERALS: Zero Hour Expansion Pack.