[nosoop]

With known arbitrary function(s)? You'll most likely have to detour them with detour-supported DHooks or an extension.

If you're not at the point where you know what function to hook, load up the binary in IDA and look at some likely candidates (if your desired function fires any events or usermessages, you can cross-reference any used strings with the string view; otherwise hopefully your game has debugging symbols present and you can find some named functions that sound like something you're looking for).