I recently ran into a guy named "
and he had a fully working menu on bo2 steam. He said that he injected GSC server side and not client side. He was entering commands into chat, ex: /prestige "name" 10, he was also able to give me a menu. I should have gotten screenshots but I didn't, but when that came to mind he set my prestige to 15 and kicked me. How is it even possible to inject server side?