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Leon SP-mappack

引用自 Leon Spymaps：

You get extracted in the sewers outside a big city that is controlled by the combines, although there are certain parts of the city that are filled with headcrabs and other creatures. You have to find and fight your way trough the sewer, over the railroad track in to the city. Once you're in the city your objective is to find the power plant and destroy it. It sounds easy but you will have to fight for your life before you get there.