Comments - HellRaiser1st

hy i just downloaded the game extracted in hl folder where is suposed of course within another folder :D stargate, and when i enter the game and i want to make a server i canot find anything at the game section, i can oly chose the map , after i chouse the map i hit ok and it starts, loading and then an error : canot find models/key.mdl or something with the key name :( help