- Grab a cold beer
- Place your freshly wetted lips onto it and enjoy
- Have some programming expirience in C and understand the basics (pointer arithmetics etc.) also know some CoD-Script (its kind of managed and simplified C)
- have a look here:
- post some extensions on killtube.org
If you want to hook some other games/programs, you can also have a look at ollydbg etc. and watch some easy tutorials on how to simply bypass instructions etc. or inject some dll or have an API hook with 'detours' (windows)