I know that it works in MP thats why i dont like the idea that people can be free to modify the game code through XML files.
Having those scopes is a hack in my oppinion cause its not released by the game developer.
People keep on whining about people being better or accusing others of cheating simply due this fact. A blood mod is nice and so is the scope... and yes i have tried it to test it and i noticed the HUGE advantage wich isnt fair to other players. This is mainly the reason of uninstalling mods of any kind.
I will also put in an official complaint about this issue to UBISOFT.