We do not teach as learning is about how you gain information
we can point you in the right direction,
If you are looking at hacking ghosts then start off at looking at the tutorials in the MW3 section as the engine is very similar
you will need to make a few adjustments, look at Jorndels tutorials in the MW3 tutorials section, get the files you need then when you sort of understand come back here for help
This site does not offer total copy/paste solutions as you will never learn from that
Jorndels tutorials are about 28 mins long and a start point