The Gold Source will not be able to handle so much polygons and size of the maps.
With programming the limits can extended like 60,000poly / model and 32768x32768 map space there is a rendering engine for GoldSrc called Trinity its have a custom bsp/model render you can easy extend the limits. ( Only need Programming knowledge ) Or just use Xash 3D to create a mod
DJShark23
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