The better_grass_1.1.7z file you have requested: Shadow of Chernobyl / Mods / Singleplayer / Better Grass - 28.34mb 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 adds better(in this version indeed better) grass to most levels, only Limansk and hospital not(here is it useless). The bigger grass may cause some memory bugs, so decrease the grass density and quality, if needed. See more in screen shots (the color of the grass is different but similar as in the screen shots).