Unpacking Gamedata (S.T.A.L.K.E.R.: Shadow of Chernobyl)

To the op-2 there is no gamedata folder, read the advice and I unpacked the ones that were installed(db1,db2, etc.)appeared folder UEgamedata) and it had to be renamed to Gamedata,do so, and the game has ceased to run, the beetle appears green,what may have been a question?
Tried to download:- http://www.nwnights.ru/redirect/w13.easy-share.com/1038261.html) but did not work,throws an error.