Hey Everyone This is The Official Post About Moding Your Games
Here Are The Steps Ok Just Follow them

Go On Cydia and then source's and type
imodgame.appspot.com/
then
Click that source after downloading it
it should be called
nadis lai's game mods
then click that
find
cod zombies mod or any other games u have
then it will respiring
there will be a app called
codz mod or which ever u clicked from cydia
then click it
after that there will be 2 tabs
click profile and scroll down
until u see inviters
type this name
MTMwODQ5
And Put the code just the way i did ok
thats alll

There You Have

ENJOY