Half-Life: Chernobyl addon

From the secret sources the committee of nuclear safety OF NATO became known, that on the Chernobyl’ atomic power plant as a result of breaking the sarcophagus occurred the local ejection of radiation. The victims of irradiation are subjected to anomalous intensive mutations. To you, as to the secret agent of North Atlantic alliance, one must on the spot verify information, and if necessary to destroy all evidences, and at the same time – and witnesses. Captivating topical action on the most known nuclear object of peace. Real topographical arrangement CHAES, the copy of accommodations, the central room of control, the blocks of the reactor and other units. What does conceal the station – seed plot of the commonplace carelessness of personnel or nuclear apocalypse for the entire planet?