[HamletEagle]

Craxor, the string that you are trying to replace is from mod, not from engine. Use okapi_mod_replace_string. The mod is the game dll(cs.so/mp.dll depending linux/windows). The engine is swds.dll/engine_i386.so

Also don't forget that the string you are trying to replace is for the SERVER console.
https://github.com/s1lentq/ReGameDLL...lient.cpp#L693
https://github.com/s1lentq/ReGameDLL...lient.cpp#L799
String is used for SERVER_PRINT.