The cop_mod.zip file you have requested: Call of Pripyat / Mods / Scope Replacement & Other Shenanigans - 17.88mb is not available. Perhaps try browsing all files for the game S.T.A.L.K.E.R.: Call of Pripyat and upload any files you want to share or are missing. This is the only information we could locate:
I started this mod to replace the scope reticules with ones that looked more realistic and unique, but grew into something a little more than that. Minor changes are applied to equipment, nothing too major or game-breaking. But, really, I mainly made this mod for the scopes, and the rest were pastimes.This is the first mod for a STALKER game that I have released to the public, and I hope that it doesn't crash and burn anyone's games. It didn't, at least for mine, and has proven to be quite stable. That's to be expected, because most changes are very minor.Post all of your questions, compliments or hate and rage in the comments.
As the author states, this is mostly a re-do of the scopes in the game to have cooler reticules. There are other things thrown in there as well. See the readme for full details.