The g36_zf.zip file you have requested: Shadow of Chernobyl / Mods / Weapons / G36 Crosshair - 143.3kb is not available. Perhaps try browsing all files for the game S.T.A.L.K.E.R. Shadow of Chernobyl and upload any files you want to share or are missing. This is the only information we could locate:
This mod replaces the G36 crosshair in the game with a more authentic one.