The ogsm_textures.zip file you have requested: Clear Sky / Mods / Singleplayer / OGSM CS BUILD 3 TEXTURES - 86.16mb is not available. Perhaps try browsing all files for the game S.T.A.L.K.E.R.: Clear Sky and upload any files you want to share or are missing. This is the only information we could locate:
Textures for the OGSM Mod I uploaded. Had to upload this separately because the mod together is just over 250 MB's. The mod will not run without this, so to play please download this.