The duty_green_texture_v1.0.zip file you have requested: Clear Sky / Mods / Singleplayer / Duty Green Texture - 1.74mb 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:
This mod gives the Duty Faction a nice dark green color to their armor. There is also a dark blue face mask.