first you need 3 things before we can start.
1. edited system file (look down)
2. Xbox Image Browser or Xbox Backup Creator
3. the ISO file of Crysis 3
lets start modding the ISO file :-)
open the ISO file in one of both programs ( i use Xbox Image Browser )
at the right side you can see now the original "system.cfg"
now press right on the "system.cfg" and "replace" it with the edited one and after replacing you can close the program
before we burn our modded ISO run it in "Abgx360" to make it stealth
now you can burn the ISO file on a Disc you can use "Imgburn"
after burn Enjoy your modded Game ;-)
* Infinite Ammo
* Infinite Invisibility
* fast Health regeneration