Half-Life: Chain Reaction - Part 1 (Live Action) Фанаткий ролик к игре Operation Black Mesa !.

When Gordon Freeman inserted the sample GG-3883 into the Anti-Mass Spectrometer, it was the begining of an unstoppable chain reaction. First the Xen life forms invaded the Black Mesa Research Facility; Then the HECU Marines were call to contain and eliminate all threat. After the complete failure of their operation, the CIA black operatives were send to arm a thermonuclear bomb in order to destroy the entire Black Mesa facility. It was a success but too late, Portal Storms were already raging across the Ear