The Command and Conquer series is a game series full of depth and complexity. If you want to understand the story in depth, it is recommended to start from the first game, Command and Conquer: Red Alert. Command and Conquer: Red Alert was the first book in the Command and Conquer series. It told the story of the war between the Soviet Union and the Allied forces and some of the political and philosophical issues involved. The battle and plot of this game were very complicated and required the player to spend a certain amount of time and effort to understand. If you want to continue playing the Command and Conquer series, I suggest you start with the second game, Command and Conquer: General. This was the second part of the Command and Conquer series. It told the story of the Allied Army under the leadership of a general in the war against the Soviet Union. The battle and story of this game were also very complicated and required players to spend a certain amount of time and effort to understand. Then, if you want to understand the advanced gameplay and tactics of the Command and Conquer series, I suggest you start with the third game, Command and Conquer: The Rebel. This is the third step in the Command and Conquer series, which tells the story of a general named "The Rebel" who used very strange tactics and strategies in his war with the Soviet Union. The battle and story of this game were also very exciting, worthy of players spending time and energy to experience. Finally, if you want to understand the background and history of the Command and Conquer series, I suggest you start with the fourth chapter, Command and Conquer: Red Alert 2. This was the fourth book in the Command and Conquer series, about the war between the Soviet Union and the Allied forces in the 1980s. The game contained a lot of historical details and background to help players better understand the origins and history of the Command and Conquer series.