For standard client-side mods (like visual overhauls that often accompany bot mods), you must use the Frosty Tool Suite . Download and extract the Mod Manager. Scan for your Battlefield 1 installation. Add and apply the .fbmod files.
And you will realize: This is not a finished product. It is a —a desperate attempt to ensure that one of the greatest multiplayer shooters ever made does not become a digital ghost when the servers finally go dark.
In short: DICE never intended for you to play Conquest against bots. They built a cathedral and locked the back door.