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GOOD OLD SIGMA

Well... i can't say much about this!
''SIGMA'' ( that's the name of this base btw ) is now under COMBINE controll, more or less becouse combines werent expecting zombies in the lowest floors and the antlions too, whitch have decided to make their own little colony not far from the BLACK MESA incident place.... anywhay combine defense wasn't the best and they had to retreat to the... let's say WEST ''SIGMA'' but the south one became lively with antlions. SO HEREIS THAT.... feel free to slaughter them all :)