Ok, I have been playing Single Player for a while now, and yesterday, I downloaded the WCP Reality (V1.0) for singleplayer from Codfiles.com. I went to start Single player with the mod installed and as it loaded any game, it said "Max Ammo Mismatch Error: Kar98k_PavlovSniper set it to 125, but Kar98k already set it to 85". I have no clue of how to fix this. Thanks.
You could uninstall the mod for now until you can find out how to fix it. Cause I really don't know how to edit mods.
I'd contact the developer. According to the readme file: "For feedback,problems and questions contact me at:WiCoPP@zonnet.nl".
Also in the readme: "Have you already got another realism mod in there, it could cause problems to have two realism mods in your main folder, remove the others before installing this one or simple dont install this one. If you have problems running codsp with this mod than there MUST be another realism mod in there together with this one. Be sure your main is clean!!!"
And..... when I looked around I found at least one patch for this mod. You might want to find what the latest patch is and install it.